The molar specific heat capacity of a gas at constant volume
The molar specific heat capacity of a gas at constant volume CV is defined as the quantity of heat required to raise the temperature of one mole of a gas through 1 K, keeping its volume constant.
The molar specific heat capacity of a gas at constant pressure
The molar specific heat capacity of a gas at constant pressure CP is defined as the quantity of heat to raise the temperature of one mole of a gas through 1 K keeping its pressure constant.