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The following physics responses are provided by a student and, as such, should be considered in that context. While every effort is made for accuracy, absolute correctness cannot be fully guaranteed.
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Question An ideal gas at pressure, volume, and temperature, P0, V0, and T0, respectively, is heated to point A, allowed to expand to point B also at A's temperature 2T0, and then returned to the original condition. The internal energy decreases by 3P0V0/2 going from point B to point T0. In going around this cycle once, which quantity equals zero?An ideal gas at pressure, volume, and temperature, P0, V0, and T0, respectively, is heated to point A, allowed to expand to point B also at A's temperature 2T0, and then returned to the original condition. The internal energy decreases by 3P0V0/2 going from point B to point T0. In going around this cycle once, which quantity equals zero?
1) the net change in internal energy of the gas
2) the net work done by the gas
3) the net heat added to the gas
4) All three are zero.
5) None of the above. | |
Answer the net change in internal energy of the gas | |
Notes
| User | Added | Note | e | d |
|---|---|---|---|---|
| KillGorack | 2023-07-11 19:28:05 | In going around the cycle once, the net change in internal energy of the gas is zero. According to the first law of thermodynamics, the change in internal energy of a system during a complete cycle is zero for an ideal gas. This means that the internal energy of the gas returns to its initial value after completing the cycle. Therefore, the correct answer is: the net change in internal energy of the gas is zero. |
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