Question

For an ideal gas, the specific heat at constant pressure $C_P$ is greater than the specific heat at constant volume $C_V$ . This is because

• A. There is a finite work done by the gas on its environment when its temperature is increased while the pressure remains constant
• B. There is a finite work done by the gas on its environment when its pressure is increased while the volume remains constant
• C. There is a finite work done by the gas on its environment when its pressure is increased while the temperature remains constant
• D. The pressure of the gas remains constant when its temperature remains constant
• E. The internal energy of the gas at constant pressure is more than at constant volume

Answer 1

Answer: (A)

For an ideal gas, the specific heat at constant pressure $C_{P}$ is greater than $C_{V}$.This is because some finite work has to be done by the gas on its environment when its temperature is increased while the pressure remains constant.