how does your body maintain blood glucose homeostasis while exercising vigorously without eating?
Answers
The body uses stored glucose homeostasis and gluconeogenesis to maintain blood glucose levels during vigorous exercise without eating.
During vigorous exercise, the body relies on glucose for energy production in muscles. The body maintains blood glucose homeostasis by using glucose stores in the liver and muscles and increasing glucose production through a process called gluconeogenesis.
Gluconeogenesis is the synthesis of glucose from non-carbohydrate sources such as amino acids, lactate, and glycerol. This process is stimulated by hormones such as glucagon and cortisol, which are released during exercise to increase blood glucose levels.
Additionally, the body may break down glycogen stores in the liver and muscles to release glucose into the bloodstream. Together, these mechanisms help to maintain blood glucose levels during exercise, even in the absence of food intake.
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During vigorous exercise, the body's demand for energy increases, and glucose is the primary source of energy for the muscles. In order to maintain blood glucose homeostasis, the body uses several mechanisms to ensure that glucose is available to the muscles even in the absence of food intake.
These mechanisms include:
Glycogenolysis: The liver and muscles store glucose in the form of glycogen, which can be quickly broken down to release glucose into the bloodstream. During exercise, glycogen stored in the muscles is broken down to release glucose, which is used by the muscles for energy.
Gluconeogenesis: The liver can also produce glucose from non-carbohydrate sources, such as amino acids and fatty acids, through a process called gluconeogenesis. This helps to maintain blood glucose levels even when there is a limited supply of dietary carbohydrates.
Insulin and glucagon: Insulin and glucagon are hormones that play a key role in regulating blood glucose levels. During exercise, insulin secretion decreases, while glucagon secretion increases. This promotes the breakdown of glycogen and the release of glucose into the bloodstream.
Hormones: Other hormones, such as adrenaline and cortisol, are also involved in regulating blood glucose levels during exercise. Adrenaline, for example, can stimulate the breakdown of glycogen and the release of glucose from the liver.
Muscle glucose uptake: During exercise, the muscles increase their uptake of glucose from the bloodstream. This is facilitated by the action of insulin, but even in the absence of insulin, the muscles can take up glucose through a process called insulin-independent glucose uptake.
Overall, these mechanisms work together to ensure that glucose is available to the muscles during vigorous exercise, even in the absence of food intake. The body is able to maintain blood glucose homeostasis by regulating the balance between glucose production and glucose utilization, and by adjusting the secretion of hormones such as insulin and glucagon.
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Related Questions
NO LINKS PLEASE
Excess carbon dioxide in the lower atmosphere acts like a(n)_____, which traps solar energy and leads to the greenhouse effect
A. funnel
B. electrical wire
C. mirror
D. glass pane
Answers
Answer:
D
Explanation:
because a glass pane acts lIke an insulator , which does not allow heat to escape
(GIVING BRAINLIEST!!)
A) It causes precipitation to form and collect in the ocean.
B) It warms the clouds in the sky and causes precipitation.
C) It warms the water on the Earth's surface and causes it to evaporate.
D) It warms the water vapor in the clouds and turns it into water droplets.
Answers
Answer:
d
Explanation:
It warms the water vapor in the clouds and turns it into water droplets.
The process involved in the formation of rains is option B, it warms the clouds in the sky and causes precipitation.
What is water cycle ?Water cycle is a geological phenomenon through which the water content in the atmosphere and hydrosphere is balanced. The heat radiated from sun warm up the water bodies make the convection currents that evaporates water.
The water vapor rise to the atmosphere and maintain the air moisture. When this vapor cools down they condense and precipitates as rain, snow or sleek.
This process involves the transfer of heat energy and matter. Here, the matter is water itself with its three phases. Hence, option b describes the cause of rain.
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Your question is incomplete. Your complete question probably was as follows:
Which process describes the cause of rain ?
It causes precipitation to form and collect in the ocean.
B) It warms the clouds in the sky and causes precipitation.
C) It warms the water on the Earth's surface and causes it to evaporate.
D) It warms the water vapor in the clouds and turns it into water droplets.
MY question is . . . . . .
What does the prefix bio in the word biofuels MOST refer to?
this is a mutliple choice answer
A.the use of fuels from dead organisms and decomposed organic materials
B.the use of agricultural products, animal waste, and/or forest materials
C.their low impact on people, wildlife, and the environment
D.their dependence on enzymes or bacteria for anaerobic “digestion”
Answers
The prefix bio in the word biofuels MOST refer to B. the use of agricultural products, animal waste, and/or forest materials.
What is the real meaning of the prefix bio in the word biofuels?The real meaning of the prefix bio in the word biofuels refers to any type of organic material which is based on the precede of biological diversity (biodiversity) and it is a fundamental issue in all biotechnological applications such as the obtention of a source of renewable energy in the biofuels from the agriculture and also in the presence of animal waste that may be sued to produce methane (a greenhouse gas).
Therefore, with this data, we can see that the real meaning of the prefix bio in the word biofuels is based on the importance of organic material which is deeply associated with biological diversity and or the word biodiversity.
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A small 50-kilogram canoe is floating downriver at a speed of 3 m/s. What is the cance's kinetic energy?
A.) 450J
B.) 225J
C.) 7500J
D.) 16.7J
Answers
The symbol for resistance is the letter "R." What is the unit of resistance called?
Opposition
An Ohm
An ampere
A switch
Answers
Answer:
Hmm symbol for resistance is the letter "R." and the unit of resistance called?
I think its An ohm
Explanation:
The symbol: Ω is the unit of electrical resistance in the International System of Units.
The symbol: Ω means: Electrical resistance
So i think its B.
An Ohm
Hope this helped :)
Please send an answer quick thank you. By the way this is a science question, to see the whole page click on the picture.
Answers
Answer:
i believe its 3) hypothesis
Explanation:
you have to propose a hypothesis to conduct an experiment and make or break the theory
Studying DNA to find evolutionary similarities among organisms is a type of ____ evidence.
I am very confused on what the answer is
Answers
Studying DNA to find evolutionary similarities among organisms is a type of molecular evidence.
What is molecular evidence in DNA studies?For researching the relationships of organisms that are not closely related, such as those that originated from a common ancestor many millions of years ago, molecular evidence is very helpful.
Scientists may determine molecular commonalities between these animals that point to a common ancestor by comparing their DNA sequences, and they can also determine the evolutionary routes that resulted in their divergence.
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the _____ nerve is a bundle of ganglion axons that carry visual information to the brain.
Answers
The optic nerve is a bundle of ganglion axons that carry visual information to the brain.
In the retina, specialized cells called photoreceptors detect light and convert it into electrical signals. These signals are then transmitted to bipolar cells and eventually reach the ganglion cells. The axons of ganglion cells bundle together to form the optic nerve, which carries the visual information to the brain for processing and interpretation, allowing us to perceive the world around us.
This nerve is responsible for transmitting the images we see from the eye to the brain's visual processing centers. The brain then interprets the information and creates a visual perception that we experience as sight. The optic nerve is made up of over one million nerve fibers and is the second cranial nerve. If the optic nerve is damaged, it can result in visual impairment or blindness.
Therefore, the optic nerve is crucial for our ability to see and perceive the world around us.
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identify this phase of mitosis and describe what occurs during this phase
Answers
BIOOOO REVIEWW ILLL GIVE A REALLY GOOD COMMENT
Answers
Answer: The answer is ⠀ ⠀ ⠀, hope this helps! :))
Explanation:
A moth's color is controlled by two alleles, G and g, at a single locus. G (gray) is dominant to g (white). A large population of moths was studied, and the frequency of the G allele in the population over time was documented, as shown in the figure below. In 1980 a random sample of 2,000 pupae was collected and moths were allowed to emerge. Assuming that the population was in Hardy-Weinberg equilibrium for the G locus, what percentage of the gray moths that emerged in 1980 was heterozygous? (The Answer is 67%, can you please explain why it's 67%? thank you!!)
Answers
Answer:
67%
Explanation:
When taking random samples from a population, the observed numbers are not always as the expected ones. The difference is by chance, instead of 50% heter0zyg0us, the sample included 67%.
--------------------------
Available data:
- Moths' color ⇒ diallelic gene
G allele → dominant → Codes for greyg allele → recessive → Codes for white- f(G) 1960 = 0.8
- f(G) 1965 = 0.7
- f(G) 1970 = 0.6
- f(G) 1975 and 1980 = 0.5
- 1980 ⇒ N = 2000 pupae
- Population in H-W equilibrium
Hardy-Weinberr equilibrium,
Assuming a diallelic gene, p and q are the allelic frequencies in a locus and represent the allelic d0minant or recessive forms. The gen0typic frequencies after one generation are p² (H0m0zyg0us d0minant), 2pq (Heter0zyg0us), q² (H0m0zyg0us recessive). Populations in H-W equilibrium will get the same allelic frequencies generation after generation.When adding the allelic frequencies of a population in H-W equilibrium, the result should be 1, this is p + q = 1.In the same way, when adding the genotypic frequencies, the result should also equal 1, this is p²+ 2pq + q² = 1In this problem we assume that the population is under H-W equilibrium, and we know that p = 0.5.
Considering that p + q = 1, then by clearing the equation, we get the value of q = 0.5
Finally, we know that the genotypic frequency of the heter0zygous genotype is 2pq, so,
F(Gg) = 2pq = 2 x 0.5 x 0.5 = 0.5 = 50%
Now, among the options in the problem, there is not 50% but others. One of them, and the closest to 50%, is 67%.
The chart reflects that through the years, the moth's populations stabilized. Both alleles were favored, and their frequencies got to be equal to each other -0.5-. So there is a high probability of getting heter0zyg0us individuals in the population -50%-, more than any of the h0mzyg0us ones -25%-.
However, in a natural population, the amount of h0m0zyg0us and heter0zygous individuals observed is not always the same as the expected ones. This fact happens especially when there are random samples.
In this experiment, the researcher took 2000 pupae, but they did not know their genotype. They just took them randomly. Even though the population is in H-W equilibrium, when sampling, the researcher took more heter0zyg0us individuals than the expected ones. It does not mean that the population is not under H-W equilibrium. It just means that by chance, more heter0zyg0us were selected.
So what you need to do in these situations, is to analyze your problem and the provided information, and think about the most feasible answer.
In this case, the expected number is 50% heter0zyg0us. The closest option is 67% and the most feasible. So that would be the answer.
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please!!!!! urgent!!!!
Answers
Answer:
An electron is a negatively charged subatomic particle. It can be either free (not attached to any atom), or bound to the nucleus of an atom. Electrons in atoms exist in spherical shells of various radii, representing energy levels. ... The charge on a single electron is considered as the unit electrical charge
Electronegativites of elements Na, AI , P,
Answers
For Na it's 0.93, Al is 1.61 and for P it's 2.19 .
According to the periodic table the electronegativity for:
Na=0.9
P=1.2
Al=1.5
why do human females have such a difficult time giving birth compared to other animals?
Answers
Human females have a difficult time giving birth compared to other animals because of the size of the human baby's head relative to the size of the birth canal.
The human brain has evolved to be much larger relative to the rest of the body than in other animals, and as a result, human babies have larger heads. However, the female pelvis has not evolved to accommodate this larger head size, making childbirth more difficult. Additionally, humans have a unique way of walking upright, which further complicates childbirth.
This bipedal gait has caused changes in the shape of the female pelvis over time to enable upright walking, but it also limits the amount of space available for a baby to pass through during birth. In contrast, other animals that walk on four legs have a more spacious birth canal, making childbirth easier.
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Answers
Answer:
ddddddddddddddddddd
Explanation:
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Oxygen molecules absorbed by cells: The athlete's result will be higher than the normal healthy body's result. Why? Explain.
Answers
Because athletes engage in strenuous activities that require a lot of oxygen in order to produce a lot of energy in the form of ATP, their oxygen results will be higher than those of a regular, healthy body.
Does physical activity increase oxygen consumption?Your body needs more oxygen and creates more carbon dioxide while you exercise because your muscles are working harder. Your breathing must rise from 15 times per minute while at rest to 40 to 60 times per minute while exercising in order to meet this additional requirement.Muscles regularly contract during exercise to power motion, which is a process that uses energy. The brain uses energy to preserve the ion gradients required for neuronal activation. The molecule ATP serves as the source of chemical energy for these and other aspects of life.You maintain a sizable breathing reserve when your lungs are in good health. After exercising, you could feel "out of breath," but you won't be "short of breath." You might use a significant portion of your breathing reserve when you have diminished lung function. While feeling "out of breath" may be uncomfortable, usually speaking, this is not harmful.To learn more about oxygen consumption refer :
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noted for increases in blood pressure. a. sympathetic b. parasympathetic c. both a and b d. none of the above
Answers
The correct answer is a) sympathetic. The sympathetic nervous system is responsible for the "fight or flight" response in the body, which can lead to increases in blood pressure.
It triggers the release of adrenaline and norepinephrine, which can cause blood vessels to constrict and the heart to beat faster and stronger. The parasympathetic nervous system, on the other hand, is responsible for the "rest and digest" response, which can lead to decreases in blood pressure. It promotes relaxation and slows down heart rate and breathing. Therefore, option c) both a and b and d) none of the above are not correct as they do not accurately reflect the role of each nervous system in regulating blood pressure.
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How is water traveling underground to lost Lake?
Answers
Answer: Water becomes the part of the aquifer.
Explanation:
Water from rain, snow fall, river, lakes, ponds, ocean, irrigation field, and from other sources become the part of the ground water or aquifer. The water seep into the soil or rocks and deposited as reservoir of water underground. The underground water when exposed to the surface can become the part of the lost lake or any other water body. Thus the source of lost lake can be determined this way by tracking the distance covered by the ground water.
Where in the body does the latent, non infectious, non replicating form of the herpes simplex virus persist?
Answers
The latent, non-infectious, non-replicating form of the herpes simplex virus (HSV) persists in nerve cells.
Specifically, HSV has the ability to establish a lifelong latent infection in sensory neurons, which are found in the peripheral nervous system. During the latent phase, the viral DNA remains in a dormant state within the nerve cells, typically in the trigeminal ganglia for oral HSV and the sacral ganglia for genital HSV. This allows the virus to evade the immune system and remain dormant until reactivation occurs, leading to recurrent outbreaks of active infection.
For herpes simplex virus type 1 (HSV-1), the virus typically establishes latency in the trigeminal ganglia, which are located near the base of the skull. This is why HSV-1 usually causes oral herpes, commonly known as cold sores. On the other hand, herpes simplex virus type 2 (HSV-2) usually establishes latency in the sacral ganglia, which are located in the lower part of the spine. This is why HSV-2 commonly causes genital herpes. It is important to note that while the virus is in its latent state, it is not actively replicating or causing symptoms. However, various triggers such as stress, illness, or a weakened immune system can reactivate the virus, leading to recurrent outbreaks of symptoms.
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At the time Hutton proposed his ideas about the age of rocks, how old was Earth believed to be by most people in Scotland?
Answers
Answer:
In the late eighteenth century, when Hutton was carefully examining the rocks, it was generally believed that Earth had come into creation only around six thousand years earlier (on October 22, 4004 B.C.
James Hutton was a Scottish naturalist and geologist who discovered the age of the earth. The earth was believed to be 6000 years old by the Scottish people.
Who was James Hutton?
James Hutton is the father of modern geology and was involved in the discovery of the earth's age and the soil formation from the parent rocks. He made his contribution to discovering the age of Earth based on his observation rather than on assumptions.
Before he discovered the earth age, it was believed by the Scottish people that the planet was six thousand years old. He discovered the process of soil formation by weathering the parent and bog rocks that accumulated as sediments over years and allowed the discovery of the planet's age.
Therefore, it is believed that the earth was 6000 years old.
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During the 1950s, a scientist named Lysenko tried to solve the food shortages in the Soviet Union by breeding wheat that could grow in Siberia. He theorized that if individual wheat plants were exposed to cold, they would develop additional cold tolerance and pass it to their offspring. Based on the ideas of artificial and natural selection, do you think this project worked as planned
Answers
Answer:
No
Explanation:
Trofim Lysenko was a Biologist in the then Soviet Union, who did not believe in the fundamental laws of science. Selective breeding is the method developed by humans to change certain characteristics of species to desired outcomes. This is based on the fact that living things have inheritable traits encoded in genes that can be passed from one generation to another.
Lysenko did not believe in this fact. He rather believed that when exposed to the right environment, plants and animals soon become adjusted to the exposure and can then develop traits that would be passed on to their offsprings. He applied this theory of his when he exposed wheat plants to cold believing that they would develop tolerance to cold. This failed woefully and resulted in severe starvation that caused the death of millions of people in the Soviet Union.
DNA is the genetic material that...
Answers
Answer:
the produces all genes and is passed down from parent to child and provides the "instructions" on the growth of the body, if the DNA is altered it can lead to things such as cancer, genetic mutations, etc.
Explanation:
Answer:
The answer is
That make up a living thing
Many receptor tyrosine kinase pathways have mapk as a downstream signaling component. mapk can phosphorylate target proteins. what type of signaling molecule is mapk?
Answers
A protein kinase that is specific to the amino acids serine and threonine is known as a mitogen-activated protein kinase (MAPK or MAP kinase; also known as a serine/threonine-specific protein kinase).
Mitogen-activated protein kinase :A small number of cell surface receptors can ultimately generate a large intracellular response due to activation of kinase cascades.
In order to trigger an appropriate physiological response, such as cellular proliferation, differentiation, development, inflammatory reactions, and death in mammalian cells, MAPK pathways relay, amplify, and integrate information from a variety of stimuli.
Tyrosine phosphorylation, specifically numerous tyrosines on each RTK in the dimer, is how cross-linking triggers the tyrosine kinase activity in these RTKs. The term "cross-phosphorylation" refers to this action.
The activation of a MAPKKKK or MAPKKK by stimulation of plasma membrane receptors is the initial stage of signal transduction. The MAPKKK then phosphorylates two serine or threonine residues in the S/T-X5-S/T (X is any amino acid) motif of its activation loop, activating a downstream MAPKK.
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NO SCAM FILES!!! Hey! i need help! Can you help me with this?? 30 points and brainlest!
For each scenario below, list the body systems involved and their function during the specific activity.
Regulation / Homeostasis
You get too hot or too cold:
Your diaphragm expands and contracts so you can breathe:
Nutrient Absorption
The reactants needed for cellular respiration are taken in and transported to your cells:
Defense from Illness
A pathogen enters your body through a cut:
Defense from Injury
A bunny is running away from a wolf:
Your hand gets too close to a flame:
Reproduction
A woman’s body prepares for a pregnancy:
A woman’s body prepares for a birth:
Answers
Answer:
Regulation / Homeostasis you get too hot or too cold:
If you get either too hot or too cold, sensors in the periphery and the brain tell the temperature regulation center of your brain—in a region called the hypothalamus—that your temperature has strayed from its set point.
Your diaphragm expands and contracts so you can breathe:
When you breathe in, or inhale, your diaphragm contracts and moves downward. This increases the space in your chest cavity, and your lungs expand into it. The muscles between your ribs also help enlarge the chest cavity. They contract to pull your rib cage both upward and outward when you inhale.
Nutrient Absorption
The reactants needed for cellular respiration are taken in and transported to your cells:
cellular respiration requires oxygen and releases carbon dioxide. It is the released oxygen that is used by us and most other organisms for cellular respiration. We breathe in that oxygen, which is carried through our blood to all our cells.
Defense from Illness
A pathogen enters your body through a cut:
The skin and mucous membranes act as a physical barrier preventing penetration by microbes. If the skin is cut then the blood produces a clot which seals the wound and prevents microbes from entering.
Defense from Injury
A bunny is running away from a wolf:
Rabbits have keen senses of smell, sight and hearing, which help them defend themselves from danger. When they sense a nearby predator, they innately freeze in place to camouflage with the landscape.
Your hand gets too close to a flame:
Skin is difficult to ignite, and usually chars in the presence of heat. It takes up to 10 minutes of direct flame for skin to crack open and start leaking out rendered fat. Even if a horse's body started to leak fat, it would be unlikely to go up in flames on its own.
Reproduction
A woman’s body prepares for a pregnancy:
Every month, usually one egg grows within a structure called the egg follicle (a fluid filled sac that nourishes the egg). The follicle produces estrogen, which helps a woman's body prepare for pregnancy by growing a new lining for the uterus.
A woman’s body prepares for a birth:
As your body prepares for birth, your cervix — the muscular ring between your uterus and vagina — begins to soften, dislodging the mucous plug.
all staphylococci members ferment mannitol? group of answer choices true false
Answers
The given statement "all members of the Staphylococci bacteria group ferment mannitol." is false because Staphylococci are a group of Gram-positive, spherical bacteria that are commonly found on human skin and mucous membranes. While some members of this group are capable of fermenting mannitol, not all of them possess this ability.
Mannitol fermentation is a key characteristic often used to differentiate between certain species of Staphylococci, particularly Staphylococcus aureus and Staphylococcus epidermidis. S. aureus can ferment mannitol, turning the medium it is grown on yellow due to the production of acidic byproducts. This change can be observed in a test called the Mannitol Salt Agar test. In contrast, S. epidermidis does not ferment mannitol and the medium remains its original color.
It is important to note that while mannitol fermentation is a useful diagnostic tool, other tests and characteristics may also be necessary to accurately identify and differentiate between various species of Staphylococci bacteria.
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please help me please will give brainliest to
Answers
Answer:
16
Explanation:
By using the law of independent assortment, you can solve this by calculating
\(2^4\)
however, crossover can cause endless possibilities of genotypes!
Choose all the answers that apply.Which of the following are benefits of genetic engineering?new vaccinescreation of toxic wastesterile offspringcancer drugsseedless grapes
Answers
Solution:
Genetic engineering has helped to propose the use of new drugs, proteins, or the use of DNA to control and correct cellular defects, as well as activate the immune response to eliminate the tumor cell.
On the other hand, genetic engineering is used to generate new vaccines, such as recombinant vaccines.
Finally, genetic engineering is used to generate transgenic organisms or transgenic products.
So, we can conclude that the correct answer is:
New Vaccines
Cancer drugs
Seedless grapes
Do humans depend on photosynthesis?
A: No, humans cannot make food by photosynthesis, so they do not depend on photosynthesis for energy.
B: Yes, all of the food consumed by humans is plants or gets energy from plants, and plants produce their own food through photosynthesis.
C: Yes, but only those humans that avoid meat depend on plants that produce their own food through photosynthesis.
D: No, humans rely on animals for food, and neither humans nor animals depend on photosynthesis for food.
Answers
Given what we know, we can confirm that humans do depend on photosynthesis to survive.
Why do we depend on photosynthesis?
The reasons behind this are described in option B . which states "Yes, all of the food consumed by humans is plants or gets energy from plants, and plants produce their own food through photosynthesis.", which is correct in that photosynthesis is essential to maintain the producer level of the food webs and keep a steady supply of food for humans.
Therefore, given that humans will either eat plants or plant-dependent animals, we can confirm that humans do in fact depend on photosynthesis to survive, option B is correct.
Answer:
B
Explanation:
Trust me
An area of land with a defined border and a sovereign government is a
Answers
Answer:
Should be a State.
o what temperature in oC must a 0.500 mole sample of O2 gas be adjusted in order to achieve a pressure of 4.00 atm in a 4.25 L container? Report your answer to the nearest oC. (
Answers
Answer:
141C
Explanation:
We need to use the ideal gas law to solve this question. Ideal gas law: PV = nRT
P = pressure = 4.00 atm = 4.00 × 101.325 = 405.3 kPa (pressure needs to be converted to kilopascals)
V = volume = 4.25L
n = number of moles = 0.500
R = gas constant = 8.314 mol/K (found om chemistry data sheet)
T = temperature = ? unknown
Before any other steps are taken, we need to rearrange the the ideal gas law formula to make T the subject.
PV/nR = T
Now we can substitute the values.
(405.3 × 4.25) ÷ (0.500 × 8.314) = 414.3673322107 (answer in kelvin)
Convert 414.3673322107 Kelvin to Celsius.
0C = 273.15K (found on chemistry data sheet)
414.3673322107 - 273.15 = 141.2173322107C
141.2173322107 to nearest C = 141C