Question

Two kilograms of a gas receive 200 kJ as heat at constant volume process. If the temperature of the temperature of the gas increases by 100°C, determine the Cv of the process. ​

Answer 1

At ordinary temperatures, CV and CP increase only slowly as temperature increases. For many purposes they can be taken to be constant over rather wide temperature ranges. For real substances, CV is a weak function of volume, and CP is a weak function of pressure.