Which of these statements are true? -The internal energy of any gas depends only the temperature...
Which of these statements are true?
| -The internal energy of any gas depends only the temperature of the system. |
| - The internal energy of a gas always increases with temperature |
| -The heat capacity of a monoatomic ideal gas is always smaller than the heat capacity of a polyatomic ideal gas. |
| - q = 0 for any process that does not result in a change in temperature. |
Homework Answers
1st statement is incorrect as internal energy is a function of volume and temperature.
2nd statement is correct, internal energy of a gas increases with temperature.
3rd statement is correct, specific heat capacity is nCvT where Cv = f/2R where f is degree of freedom.
4th statement is incorrect, temperature i.e. internal energy can change by doing work.
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Which of these statements are true?
-The internal energy of any gas depends only the temperature...
prove that the internal energy of a monatomic ideal gas depends only on its temperature (start...
prove that the internal energy of a monatomic ideal gas depends only on its temperature (start with the change of momentum of one gas particle after its collision with a wall of the container where the ideal gas is filled in, look for the link between the pressure and the kinetic energy of the ideal gas)
11) We know the internal energy of a given quantity of an ideal gas depends only...
11) We know the internal energy of a given quantity of an ideal gas depends only on its temperature. There is no change in internal energy purely due to a change in volume. But what about for a real gas? Does the energy depend on volume and, if so, how important is it to account for this? In Lecture #5 we show that, when a system undergoes an isothermal process, the change in internal energy due to a change in...
Learning Goal Internal Energy of an ideal gas The internal energy of a system is the...
Learning Goal Internal Energy of an ideal gas The internal energy of a system is the energy stored in the system. In an ideal gas, the internal energy includes the kinetic energies (translational and rotational) of all the molecules, and other energies due to the interactions among the molecules. The internal energy is proportional to the Absolute Temperature T and the number of moles n (or the number of molecules N). n monatomic ideal gases, the interactions among the molecules...
Which of the following statements does not apply to the definition of an ideal gas? Group...
Which of the following statements does not apply to the definition of an ideal gas? Group of answer choices a. Intermolecular interactions are negligible. b. The Gibbs free energy only depends upon the temperature. c. The enthalpy only depends upon the temperature. d. The internal energy only depends upon the temperature. e. None. The previous answers are all correct. Consider a solid substance. Which of the following expressions is wrong? Group of answer choices a. Internal energy increases when the...
1. A gas absorbs 0.0 J of heat and then performs 30.8 J of work. The change in internal energy of the gas is a. 61....
1. A gas absorbs 0.0 J of heat and then performs 30.8 J of work. The change in internal energy of the gas is a. 61.6 J. b. 30.8 J. c. -61.6 J. d.-30.8 J. e. none of these 2. Which of the following statements correctly describes the signs of q and w for the following exothermic process at P= 1 atm and T = 370 K? H2O(g) → H2O(1) a. q and w are negative. b. is positive, wis...
Which of the following statements is correct? The internal energy of a system increases when more...
Which of the following statements is correct? The internal energy of a system increases when more work is done by the system than heat was flowing into the system. The internal energy of a system decreases when work is done on the system and heat is flowing into the system. The system does work on the surroundings when an ideal gas expands against a constant external pressure. All statements are true. All statements are false.
Part B Check all the correct statements. Note: Push yourself to understand why these statements are...
Part B Check all the correct statements. Note: Push yourself to understand why these statements are true or false. If false think about an example that contradicts the statement, or think about how you would formulate the statement so it is correct. You will n you can answer a similar question that is formulated differently The internal energy of any gas (ie. not necessarily ideal) depends only the temperature of the system The kinetic energy of any gas (i.e. not...
b. 7. Why does it take more heat to increase the temperature of diatomie gas vs. monoatomic gas (why the heat capac...
b. 7. Why does it take more heat to increase the temperature of diatomie gas vs. monoatomic gas (why the heat capacity of diatomic gasses are larger)? Choose the most correct statement: Monoatomic gas Diatomic gas a. Diatomic gasses are always heavier than monoatomic gasses, so it takes more energy to increase its temperature. b. Diatomic gasses have rotational motion that monoatomic gasses do not have. More energy is needed to make the diatomic gasses to spin faster. . The...
Part A An ideal gas expands through an adiabatic process. Which of the following statements is/are true? Check all that...
Part A An ideal gas expands through an adiabatic process. Which of the following statements is/are true? Check all that apply. Check all that apply. The work done by the gas is negative, and heat must be added to the system. The work done by the gas is positive, and no heat exchange occurs. The internal energy of the system has increased. The internal energy of the system has decreased. SubmitHintsMy AnswersGive UpReview Part Incorrect; Try Again; 5 attempts remaining...
2. A container of ideal gas has a movable frictionless piston. This container is placed in a very large water bath and slowly compressed so that the temperature of the gas remains constant and equal to the temperature of the water. Which of the following
2. A container of ideal gas has a movable frictionless piston. This container is placed in a very large water bath and slowly compressed so that the temperature of the gas remains constant and equal to the temperature of the water. Which of the following statements about this gas are true for this process? (There may be more than one correct choice.) A) Heat leaves the gas during the compression. B) Since the gas and water are at the same...
11) We know the internal energy of a given quantity of an ideal gas depends only on its temperature. There is no change in internal energy purely due to a change in volume. But what about for a real gas? Does the energy depend on volume and, if so, how important is it to account for this? In Lecture #5 we show that, when a system undergoes an isothermal process, the change in internal energy due to a change in...
Learning Goal Internal Energy of an ideal gas The internal energy of a system is the energy stored in the system. In an ideal gas, the internal energy includes the kinetic energies (translational and rotational) of all the molecules, and other energies due to the interactions among the molecules. The internal energy is proportional to the Absolute Temperature T and the number of moles n (or the number of molecules N). n monatomic ideal gases, the interactions among the molecules...
1. A gas absorbs 0.0 J of heat and then performs 30.8 J of work. The change in internal energy of the gas is a. 61.6 J. b. 30.8 J. c. -61.6 J. d.-30.8 J. e. none of these 2. Which of the following statements correctly describes the signs of q and w for the following exothermic process at P= 1 atm and T = 370 K? H2O(g) → H2O(1) a. q and w are negative. b. is positive, wis...
Which of the following statements is correct? The internal energy of a system increases when more work is done by the system than heat was flowing into the system. The internal energy of a system decreases when work is done on the system and heat is flowing into the system. The system does work on the surroundings when an ideal gas expands against a constant external pressure. All statements are true. All statements are false.
Part B Check all the correct statements. Note: Push yourself to understand why these statements are true or false. If false think about an example that contradicts the statement, or think about how you would formulate the statement so it is correct. You will n you can answer a similar question that is formulated differently The internal energy of any gas (ie. not necessarily ideal) depends only the temperature of the system The kinetic energy of any gas (i.e. not...
b. 7. Why does it take more heat to increase the temperature of diatomie gas vs. monoatomic gas (why the heat capacity of diatomic gasses are larger)? Choose the most correct statement: Monoatomic gas Diatomic gas a. Diatomic gasses are always heavier than monoatomic gasses, so it takes more energy to increase its temperature. b. Diatomic gasses have rotational motion that monoatomic gasses do not have. More energy is needed to make the diatomic gasses to spin faster. . The...
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