The enthalpy change when 1 mole of gaseous atoms is formed from elements in its standard state____Enthalpy change of atomisation (ÎHat)
Answers
The enthalpy change when 1 mole of gaseous atoms is formed from elements in its standard state is called the enthalpy change of atomization.
It is defined as the enthalpy change that occurs when one mole of a substance in its standard state is converted into gaseous atoms at the same temperature and pressure. This process requires the input of energy, which is typically provided by heat. The enthalpy change of atomization is usually expressed in units of kilojoules per mole (kJ/mol).
For example, the enthalpy change of atomization for chlorine gas is +121 kJ/mol. This means that it takes 121 kilojoules of energy to convert one mole of chlorine gas into gaseous chlorine atoms at standard temperature and pressure.
This process involves breaking the bonds between the atoms in the elements and forming new bonds between the individual atoms to create the gaseous atoms. The enthalpy change associated with this process is a measure of the energy required to break the bonds and the energy released when the new bonds are formed.
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Related Questions
In a weak acid-strong base titration, which of the following quantities does not depend on the acid dissociation constant of the weak acid? The volume of base needed to reach the equivalence point. The initial pH The pH at the equivalence point. The rise in pH near the equivalence point
Answers
The quantity that does not depend on the acid dissociation constant of the weak acid in a weak acid-strong base titration is the volume of base needed to reach the equivalence point.
In a weak acid-strong base titration, the acid dissociation constant (Ka) of the weak acid determines the pH of the solution at the equivalence point and the rise in pH near the equivalence point. The initial pH, on the other hand, depends on the concentration and identity of the weak acid. At the start of the titration, the weak acid is present in excess, so the pH will be determined by the Ka of the weak acid. As the strong base is added, the pH will rise and approach the equivalence point, where all the weak acid has been converted to its conjugate base. At this point, the pH will depend on the Ka of the weak acid and the concentration of the conjugate base. The rise in pH near the equivalence point will be determined by the amount of weak acid that is left in the solution and the concentration of the conjugate base. However, the volume of base needed to reach the equivalence point does not depend on the Ka of the weak acid, as it is determined by the stoichiometry of the reaction.
In a weak acid-strong base titration, the volume of base needed to reach the equivalence point is not affected by the Ka of the weak acid. However, the initial pH, the pH at the equivalence point, and the rise in pH near the equivalence point are all influenced by the Ka of the weak acid and the concentration of the conjugate base.
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A chemical formula is shown below. How many total atoms are in 2 molecules of the chemical formula shown?
C6H12N2O
Answers
Answer: 42
Explanation: I took a quiz and had the same question.
The most negative electron affinity is most likely associated with which type of atoms?
large nonmetal atoms
small nonmetal atoms
large metal atoms
small metal atoms
Answers
Explanation:
elements are based on electrical conductivity
The most negative electron affinity is most likely associated with small nonmetal atoms.
Electron affinity refers to the ability of an atom to accept electrons and form negative ions.
Electron affinity decreases down the group but increases across the period.
As atoms become smaller, the energy released when they accept electrons become increasingly more negative.
Hence, the most negative electron affinity is most likely associated with small nonmetal atoms.
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What is an indicator that a chemical change has occurred? a change in energy a change in shape the presence of solubility in water the presence of a melting point.
Answers
A chemical change has taken place an adjustment in energy.A chemical reaction can be detected by bubbling, a change in color, a change in smell, the production of a precipitate, and heat.
Which sign most strongly shows that a chemical shift is occurring?A change in color and the appearance of bubbles are two examples of chemical changes' symptoms. The five requirements for chemical change are: color change, precipitate or gas production, gas formation, odor change, and temperature change.Changes in color, temperature changes, the creation of gases, and the formation of solid precipitates are all indications that chemical reactions have taken place.A chemical reaction can be detected by bubbling, a change in color, a change in smell, the production of a precipitate, and heat.To learn more about chemical change refer to:
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One lawn chair is made of aluminum (c=0.89 j/g°c) and another is made of iron (c=0.45 j/g°c). both chairs are painted the same color. on a sunny day, which chair you want to sit on? why?
Answers
The preferred chair to sit on a sunny day is the one made of aluminum. It offers a more comfortable seating experience compared to the iron chair. The aluminum chair's higher specific heat capacity helps it absorb less heat and stay cooler.
Why is the aluminum chair preferred on a sunny day?Aluminum is the preferred choice for sitting on a sunny day due to its higher specific heat capacity (c=0.89 J/g°C) compared to iron (c=0.45 J/g°C). Specific heat capacity refers to the amount of heat energy required to raise the temperature of a substance by one degree Celsius per gram.
When exposed to the sun, both chairs will absorb heat energy from the sunlight. However, aluminum has a higher specific heat capacity, meaning it can absorb more heat energy per gram compared to iron. This results in the aluminum chair heating up at a slower rate than the iron chair.
The slower rate of heat absorption by the aluminum chair makes it more comfortable to sit on during a sunny day. It will take longer for the aluminum chair to reach an uncomfortable temperature compared to the iron chair, providing a more pleasant seating experience.
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which of the following molecules would have the lowest boiling point? C4H10 C3H8 C2H6 CH4
Answers
Answer:
CH4
Explanation:
this would have the lowest boiling point as it has the least amount of intermolecular forces and is the smallest molecule and would be easier to break apart rather than the higher boiling points (C4H10 etc)
hope this helps
2. Complete the table below to organize the information from this section. Jupiter Saturn Uranus Neptune Pluto ORDER FROM THE SUN 5th 7th Usually, 9th THE OUTER PLANETS ATMOSPHERE Thick; hydrogen and helium Thick methane MOONS 1, Charon , including At least 31, including Titan Science online Visit blue.msscience.com to access your textbook, interactive including including
Answers
We can see here that organizing the information, we have:
Order from the Sun:
Jupiter (5th)Saturn (6th), Uranus (7th)Neptune (8th)Pluto (9th)Atmosphere: Jupiter and Saturn have thick atmospheres composed mainly of hydrogen and helium, while Uranus and Neptune have thick atmospheres containing methane.
Moons: Jupiter has 79 moons, Saturn has 82 moons, Uranus has 27 moons, Neptune has 14 moons, Pluto has 1 moon (Charon).
What is planet?A planet is a celestial body that orbits around a star, is spherical in shape, and has cleared its orbit of other debris. To be considered a planet, the object must be massive enough for its own gravity to pull it into a roughly spherical shape and it must dominate its orbit, meaning it has cleared its orbit of other debris.
In our solar system, there are eight officially recognized planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.
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If a closed tin can of volume 60 in3 is to be in the form of a right-circular cylinder, find analytically the base radius of the can if the least amount of tin is to be used in the manufacture
Answers
The radius of a right circular cylinder is 3.09 inches.
What is volume?
Volume can be given as the space occupied by the matter. The volume of the cylinder is given as:
Volume = πr²h
The total surface area (TSA) of a right circular cylinder is given as:
Area = 2πr(h + r)
The volume of the can is 60 cubic inch. Substituting the value:
60 = πr²h
h = 60/ πr²
Substituting the value for the height in the TSA formula:
\(\rm Area = 2\pi r (\frac{60}{\pi r^2} + r)\\\\Area = 2\pi r \;\times\;\frac{60}{\pi r^2}\;+\;2\pi r^2\\\\Area = \frac{240}{r^3}\;+\;4\pi\)
This is the minimum surface area.
The value of the minimum area at the critical point is 0. Thereby:
\(\rm 0= \dfrac{240}{r^3}\;+\;4\pi\\\\r^2=\dfrac{120}{4\pi}\\\\r=3.09\;inches\)
The radius of a right circular cylinder is 3.09 inches.
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the computer chip is made of silicone compound. explain the suitability of the silicone compound to make the chip.
Answers
Answer:
computer is a device used to make work easy and comfort
GIVING BRAINLIEST TO WHOEVER GETS IT RIGHT
Identify the choice that best completes the statement or answers the question. The following paragraph contains an error. Read the entire passage. Then select the option that corrects the error. Most people know that bats can find their way in the dark using echolocation. Bats make a series of high-pitched squeaks. Based on the way these sound waves diffract off objects around it, a bat can form a mental picture of its surroundings. Fewer people realize that humans can also learn to echolocate. A man named Daniel Kish can ride his bike even though he lost his vision at the age of one! Mr. Kish makes a sharp clicking sound with his tongue. By listening to the echoes of the click, he can easily navigate his surroundings.
A. Mr kishs use of echolocation would be limited due to absorption of sound waves
B. Mr kish actually navigates through the use of radar waves, not echolocation
C. in echolocation, bats listen to the way sound waves refract, not diffract
D. In echolocation, bats listen to the way sound waves reflect, not diffract
Answers
Answer:C
Explanation: Done by reading and is best answer option.
If the cell potential is negative, which electrode is connected to the anode?.
Answers
Answer: Heyo Kenji Here! Here's your answer- In addition, since the external battery source is what drives the electrons through the circuit, the electrodes will match the positive and negative terminal of the battery. While the anode remains the site of oxidation, it becomes the positive terminal, and the cathode becomes the negative terminal.
Explanation: Hope this helps!
Have a nice day!
- Kenji ^^
Answer: In a galvanic (voltaic) cell, the anode is considered negative and the cathode is considered positive. This seems reasonable as the anode is the source of electrons and cathode is where the electrons flow. However, in an electrolytic cell, the anode is taken to be positive while the cathode is now negative.
Explanation: I hope this helps!
2. Give a "water-wise" alternative to each
activity below.
(a) hosing off a driveway to
clean it
(b) watering outdoor plants with a hose
(c) letting the tap run to get cold water
i’m feeling good today you’ll get 30 points for the questions
Answers
Answer:
1. sweep it instead
2.use a wateringcan with a percise nossole to water your plants efectivly 3.keep a jug of water in your frisge
Explanation:
write two uses of echoes
Answers
Whales often use echoes in the form of echolocation to find their mates, which is a series of repeated sounds that are heard up to a certain radius in distance from the whale that produced the sound.
Sound reflection is used in the form of echoes so that only the users of the echoes can hear the sound. An example would be band players at practice, and how brick walls are used to surround the practice room so only they can hear what is being echoed.
Echo: When a sound wave is created in the air, some of it is reflected back to the listener while some of it is absorbed after hitting a reflector. Echo is the name for this reflected sound.
Utilizations for Echo:
1. Bats use the echolocation method to find their way because they are unable to see with their eyes. Bats can determine whether an object is in front of a sound by listening to how it is reflected. It uses this method when hunting its prey.
2. This method is also employed to determine undersea distance and ocean depth.
3. Estimating the separation between hills and mountains is also helpful.
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What change in the IR spectrum would suggest that benzophenone has been converted to diphenylmethanol
Answers
The appearance of a new broad peak around 3500-3600 cm^-1 in the IR spectrum would suggest that benzophenone has been converted to diphenylmethanol.
In the IR spectrum, the position and intensity of absorption peaks provide information about the functional groups present in a compound. Benzophenone has a carbonyl group (C=O) in its structure, which typically shows a sharp peak around 1700-1750 cm^-1. However, when benzophenone is converted to diphenylmethanol, the carbonyl group is reduced to a hydroxyl group (OH).
The hydroxyl group in diphenylmethanol gives rise to a broad peak in the IR spectrum around 3500-3600 cm^-1. This peak corresponds to the stretching vibration of the O-H bond. The broadness of the peak is due to hydrogen bonding interactions between the hydroxyl groups in the molecule.
The appearance of this new peak in the IR spectrum indicates the formation of diphenylmethanol and the conversion of the carbonyl group in benzophenone to a hydroxyl group. It provides evidence of the reduction reaction that has occurred.
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When benzophenone is converted to diphenylmethanol, the IR spectrum would show the disappearance of the strong carbonyl (C=O) stretch around 1700 cm-1 and the appearance of a new, broad absorption band for the alcohol (OH) group around 3200-3600 cm-1.
Explanation:The question asks what change in the IR spectrum would suggest that benzophenone has been converted to diphenylmethanol. In the IR spectrum, different functional groups in molecules exhibit characteristic absorption frequencies. Benzophenone, a ketone, has a strong carbonyl (C=O) stretch in the IR spectrum around 1700 cm-1. However, when benzophenone is converted to diphenylmethanol, the carbonyl group is converted into an alcohol (OH) group. So, in the diphenylmethanol's IR spectrum, you would expect to see the disappearance of the absorption band around 1700 cm-1 which is characteristic of the carbonyl group, and the appearance of a new, broad absorption band around 3200-3600 cm-1 characteristic of the OH group in alcohols.
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Convert 35 kg to its equivalent in g. Hint 1000g = 1kg
Answers
Answer:
35,000 g
Explanation:
1000g=1 kg
1000*35=35,000
Charlotte has some copper sulfate solution. She wants solid copper sulfate. Which technique should she use?
Answers
Answer:
She should use the crystalization technique
Explanation:
First, the copper sulfate solution should be filtered to clear any impurities.
By heating the solution of copper sulfate on a china dish, the excess water in the solution evaporates and leaves behind a saturated solution of copper sulfate.
Upon cooling this saturated copper sulfate solution, crystals of solid copper sulfate will be formed on the china dish.
In solid form, copper sulfate appears in triclinic-shaped crystals.
a 50 ml graduated cylinder contains 25.1 ml of water. a 145.8820 g piece of osmium is placed in the graduated cylinder and the water level rises to 31.6 ml. what is the density of the piece of osmium?
Answers
The density of the osmium is 22.59 g/mL.
To calculate the density of the osmium, we need to use the formula:
Density = Mass / Volume
First, we need to calculate the volume of the osmium that was added to the graduated cylinder. We can do this by subtracting the initial volume of the water from the final volume of the water:
Volume of osmium = Final volume - Initial volume
Volume of osmium = 31.6 mL - 25.1 mL
Volume of osmium = 6.5 mL
Next, we need to calculate the mass of the osmium:
Mass of osmium = 145.8820 g
Now we can use the formula to calculate the density:
Density = Mass / Volume
Density = 145.8820 g / 6.5 mL
Density = 22.59 g/mL
The density of the osmium is 22.59 g/mL.
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Firt, once in the imulation, click on "olution value". Move the blue lever (olute amount) and (olution volume) to the required amount and find the molarity of the following:
1. Uing Drink Mix mode:
a. What i the molarity when. 772 mole are diolved in. 500 Liter of water?
b. What i the molarity when. 453 mole are diolved in. 450 Liter of water?
Answers
Using Drink Mix mode:
a. To find the molarity when 772 moles of a solute are dissolved in 500 liters of water, you can use the formula:
Molarity (M) = number of moles of the solute present in the solution / liters of solvent
Molarity (M) = 772 moles / 500 liters
= 1.544 M
b. To find the molarity when 453 moles of a solute are dissolved in 450 liters of water, you can use the formula:
Molarity (M) = number of moles of the solute present in the solution / liters of solvent
Molarity (M) = 453 moles / 450 liters
= 1.01 M
It's worth noting that molarity is a unit of concentration and is often used to describe the concentration of a solute in a solution. It is calculated as the number of moles of solute per liter of solvent.
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How are advancements in chemistry related to technology?
PLEASE BE ACCURATE! Thank you very much!:)
Answers
Advancements in chemistry have played a critical role in advancing technology in a number of ways such as ;
PharmaceuticalsEnergyNanotechnologyWhat is the relationship of advancements in chemistry to technology?Overall, advancements in chemistry are essential for developing new technologies and improving existing ones. By understanding the fundamental properties of materials and substances, chemists can create new materials with unique properties and develop new technologies that can improve our lives.
In term of Energy, Chemistry is crucial for developing new forms of energy, including renewable energy sources like solar, wind, and biofuels. Chemistry also plays a vital role in energy storage, such as the development of high-capacity batteries and fuel cells.
In term of Pharmaceuticals, Chemistry is essential for developing new drugs and improving existing ones. For example, the development of new cancer drugs has revolutionized cancer treatment, and new antibiotics have been developed to combat drug-resistant bacteria.
In term of Nanotechnology, Chemistry is critical for the development of nanotechnology, which involves working with materials at the nanoscale. Nanotechnology has many potential applications, including in electronics, medicine, and energy storage.
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Emma is a farmer. She has designed and built four different types of levers. She wants to choose the most efficient lever to use for lifting bales of hay on her farm.
She measures the amount of work she needs to perform on her end of each lever to lift the hay. She records this as is her "input work."
She also tests each lever to measure the amount of work it does on the bale of hay by lifting it. She records this as is her "output work."
The table below shows her findings.
Lever Design Input Work (N·m) Output Work (N·m)
#1 3,750 3,350
#2 3,850 3,350
#3 3,900 3,350
#4 3,500 3,350
Which lever should Emma choose?
A.
Lever Design #1
B.
Lever Design #3
C.
Lever Design #4
D.
Lever Design #2
Answers
Emma should choose Lever Design #4 as it requires the least input work for the same output work as the other levers.
The most efficient lever is the one that requires the least input work to perform the same amount of output work. In this case, Lever Design #4 requires the least input work of 3,500 N·m to lift the bale of hay with an output work of 3,350 N·m. The other levers require more input work for the same output work. Lever Design #1 requires 3,750 N·m of input work, Lever Design #2 requires 3,850 N·m, and Lever Design #3 requires 3,900 N·m.
Therefore, Lever Design #4 is the most efficient lever for Emma to use for lifting bales of hay on her farm. It is important for Emma to choose the most efficient lever to save energy and reduce the risk of injury from overexertion.
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What’s a element that is a metal, contains 1 valance electron, 3 energy levels?
Answers
Explanation:
Sodium is the element having one valance electron and 3 energy level and is a metal.Its atomic number is 11 .So in first energy level ,there is 2 electrons ,in second energy level,there is 8 electrons and in third energy level,there is one electron.The one electron in the third energy level is called valance electron and it is a metal in the sence it has only one valance electron and it can easily loose it and gain +ve charge.
what is the molarity of nacl in a solution, when 97.4 g of nacl (formula mass = 58.4 g/mol) are used to make a final solution of 897. ml? enter answer to 3 decimal places.
Answers
The molarity of NaCl in the solution is 1.997 M.
First, we need to calculate the number of moles of NaCl used in the solution:
moles of NaCl = mass of NaCl / formula mass of NaCl
moles of NaCl = 97.4 g / 58.4 g/mol
moles of NaCl = 1.666 moles
Next, we need to calculate the volume of the solution in liters:
volume of solution = 897 ml ÷ 1000 ml/L
volume of solution = 0.897 L
Finally, we can calculate the molarity using the formula:
molarity = moles of solute / volume of solution
molarity = 1.666 moles / 0.897 L
molarity = 1.997 M
NaCl in the solution therefore has a molarity of 1.997 M.
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What causes the periodic change between night and day?
Earth's revolution around the sun
the moon's rotation
the moon's revolution around Earth
Earth's rotation
Answers
Answer:
Earths Rotation
Explanation:
Answer:
D
Earth's rotation
Explanation:
Mark as branliest if right but im pretty sure im right
If 45 mL of a 6 M solution is diluted to a final volume of 250 mL, what is concentration of the final solution?
Answers
Answer:
1.08 M
Explanation:
From the question given above, the following data were obtained:
Initial volume (V₁) = 45 mL
Initial concentration (C₁) = 6 M
Final volume (V₂) = 250 mL
Final concentration (C₂) =?
The final concentration of the solution can be obtained by using the dilution formula as illustrated below:
C₁V₁ = C₂V₂
6 × 45 = C₂ × 250
270 = C₂ × 250
Divide both side by 250
C₂ = 270 / 250
C₂ = 1.08 M
Therefore, the final concentration of the solution is 1.08 M.
14. Lab Analysis: You forgot to label your chemicals and do not know whether your unknown solution is strontium nitrate or magnesium nitrate. You use the solutions potassium carbonate and potassium sulfate in order to determine your mistake. unknown + potassium carbonate & unknown + potassium sulfate . Write the complete balanced molecular equation(s) below of the reaction(s) that occurred, including the states of matter. HINT: Try writing ALL possible reactions that could have been created, and then decide which reactions actually occurred.
Answers
By observing the reactions and the formation of precipitates, we can determine whether the unknown solution is strontium nitrate or magnesium nitrate.
What is an unknown solution?
There are two possible reactions that could occur when potassium carbonate or potassium sulfate are added to the unknown solution:
unknown + potassium carbonate → strontium carbonate or magnesium carbonate + potassium nitrateunknown + potassium sulfate → strontium sulfate or magnesium sulfate + potassium nitrateTo determine which of these reactions occurred, we need to observe which reaction produced a precipitate (an insoluble solid) and which did not.
If a precipitate forms when potassium carbonate is added to the unknown solution, then the unknown solution must have been magnesium nitrate. The balanced molecular equation for this reaction is:
\(Mg(NO_{3}){2}\) (aq) + \(K_{2} CO_{3}\) (aq) → \(MgCO_{3}\) (s) + 2\(KNO_{3}\) (aq)
If no precipitate forms when potassium carbonate is added, but a precipitate forms when potassium sulfate is added, then the unknown solution must have been strontium nitrate. The balanced molecular equation for this reaction is:
\(Sr(NO_{3})_{2}\) (aq) + \(K_{2}SO_{4}\) (aq) → \(SrSO_{4}\) (s) + \(2KNO_{3}\) (aq)
By observing the reactions and the formation of precipitates, we can determine whether the unknown solution is strontium nitrate or magnesium nitrate.
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does carbon dissolve in water
Answers
Answer:
yes
Explanation:
CO2 is soluble because water molecules are attracted to these polar areas. The bond between carbon
solutions must have at least two different pure substances.t/f
Answers
True. solutions must have at least two different pure substances, a solute and a solvent.
In chemistry, a solution is a homogeneous mixture composed of two or more substances. A pure substance is a material that consists of only one type of particle, either an element or a compound. solutions can be made by dissolving a solute in a solvent. The solute is the substance that is being dissolved, while the solvent is the substance in which the solute is dissolved.
In order for a solution to have at least two different pure substances, it must contain a solute and a solvent that are different from each other. If the solute and solvent are the same substance, then the solution would only have one pure substance.
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A homogenous combination made up of at least two separate pure components is referred to be a solution. The solvent and the solute are the two primary elements of a solution. Hence the statement is true.
The substance that dissolves the solute the most completely is known as the solvent. The thing that dissolves in the solvent is called the solute.
In a solution, the solute is evenly distributed at the molecular or ionic level throughout the solvent, forming a homogenous mixture with no discernible boundaries between the constituent parts.
A solution must thus, by definition, include at least two distinct, pure substances: the solute and the solvent.
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Which of the following is the correct IUPAC name for the tertbutyl substituent?
a. (1,1-dimethylethyl)
b. (1,1,1-trimethyl)
c. (1-methyl-2-propyl)
d. 2-methyl-2-propyl)
Answers
The correct IUPAC name for the tertbutyl substituent is a. (1,1-dimethylethyl). This is because the tertbutyl group is a branched alkyl group with four carbon atoms.
The prefix "tert-" indicates that the carbon atom attached to the rest of the molecule is attached to three other alkyl groups. The prefix "but-" indicates that the group has four carbon atoms, and the suffix "-yl" indicates that it is an alkyl group. The prefix "1,1-dimethyl-" indicates that there are two methyl groups attached to the first carbon atom of the butyl group. Therefore, the correct IUPAC name for the tertbutyl substituent is (1,1-dimethylethyl).
It is important to know the correct IUPAC name of a molecule or substituent because it provides a standardized way of naming compounds, which allows chemists to communicate effectively and avoid confusion. The IUPAC naming system is based on a set of rules that can be applied to any organic compound, allowing for easy identification and classification of different compounds.
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Which two changes would make this reaction reactant-favored?
2H₂+02 2H₂O + energy
A. Reducing the pressure
B. Increasing the pressure
C. Reducing the temperature
D. Increasing the temperature
Answers
C. Reducing the temperature, is the two changes would make this reaction reactant-favored 2H₂+O₂ 2H₂O + energy
To make the given reaction reactant-favored, we need to shift the equilibrium towards the left side, favoring the formation of reactants (H₂ and O₂) rather than products (H₂O). This can be achieved by considering the impact of pressure and temperature on the reaction.
A. Reducing the pressure:
Reducing the pressure would not favor the reactants. According to Le Chatelier's principle, decreasing the pressure will shift the equilibrium towards the side with a higher number of moles of gas. In this case, both sides of the reaction have the same number of moles of gas (two moles), so reducing the pressure will not have a significant effect.
B. Increasing the pressure:
Increasing the pressure would not favor the reactants either. Again, according to Le Chatelier's principle, increasing the pressure will shift the equilibrium towards the side with fewer moles of gas. As both sides have the same number of moles of gas, changing the pressure will not impact the equilibrium.
C. Reducing the temperature:
Reducing the temperature would favor the reactants. The reaction is exothermic (releases energy), and according to Le Chatelier's principle, decreasing the temperature favors the reaction that produces heat. Therefore, reducing the temperature would shift the equilibrium towards the reactants (H₂ and O₂) side.
D. Increasing the temperature:
Increasing the temperature would not favor the reactants. In an exothermic reaction, increasing the temperature would shift the equilibrium towards the products (H₂O) side to absorb the additional heat.
In conclusion, reducing the temperature (option C) would make the reaction reactant-favored, favoring the formation of H₂ and O₂ rather than H₂O. Therefore, Option C is correct.
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No2 (g) +CO()NO)CO2(g) calculate the order of the reaction with respect to the following reactants according to the following experimental data: Experiment INO2lo (M) ICOlo (M) Initial Rate-AINO2VAt (M/s) 1 0.263 0. 826 1.44 x 10^-5 2 0.263 0. 413 1.44 x 10^-5 3 0.526 0.413 5.76 x 10^-5 Order of the reaction with respect to NO2: _____Order of the reaction with respect to CO: ______
Answers
The order of the reaction with respect to NO2 is x = 1, and the order of the reaction with respect to CO is y = 0.5.
No2 (g) + CO(g) → NO(g) + CO2(g) is the given chemical reaction to calculate the order of the reaction with respect to the following reactants according to the given experimental data as mentioned below:
Let's understand this in detail:
Order of reaction with respect to NO2:
We know that the rate of reaction is given by the formula as follows,
Rate = k[NO2]^x [CO]^yWhere,
k = Rate constant
[NO2] = Concentration of NO2
[CO] = Concentration of CO
x and y = Order of reaction with respect to NO2 and CO, respectively. The first experiment data is taken into account for calculating the order of reaction with respect to NO2 as follows:
1.44 x 10^-5 = k [0.263]^x [0.826]^y......(i)
The second experiment data is taken into account for calculating the order of reaction with respect to NO2 as follows:1.44 x 10^-5 = k [0.263]^x [0.413]^y......(ii)
Now, dividing equation (i) by equation (ii), we get
[0.826]^y/[0.413]^y = 1 => (2)^(2y) = 2 => 2y = 1 => y = 0.5
Substituting the value of y in equation (i), we get
1.44 x 10^-5 = k [0.263]^x [0.826]^0.5=> k = 0.015
Therefore, the order of the reaction with respect to NO2 is x = 1.
Order of reaction with respect to CO:
The first experiment data is taken into account for calculating the order of reaction with respect to CO as follows:
1.44 x 10^-5 = k [0.263]^x [0.826]^y......(i)
The third experiment data is taken into account for calculating the order of reaction with respect to CO as follows:
5.76 x 10^-5 = k [0.526]^x [0.413]^y......(ii)
Now, dividing equation (i) by equation (ii), we ge
t[0.826]^y/[0.413]^y = 2 => 2y = 1 => y = 0.5
Substituting the value of y in equation (i), we get1.44 x 10^-5 = k [0.263]^x [0.826]^0.5=> k = 0.015
Therefore, the order of the reaction with respect to CO is y = 0.5. Hence, the order of the reaction with respect to NO2 is x = 1, and the reaction with respect to CO is y = 0.5.
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