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

Options

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

Answer

A