試題詳解

8, An ideal gas has a higher specific heat at constant pressure (Cp) than its specific heat at constant volume (Cv). This is because______?
(A) Gas expanding at constant pressure does work on the environment when its temperature is increased.
(B) Gas's internal energy increases more when held at constant pressure than when held at constant volume.
(C) Pressure of the gas remains constant if the temperature is held constant.
(D)More heat is required to heat up gas at increasing pressure than at increasing volumes.