Some of the thermodynamic parameters are state variables while some are process variables. Some grouping of the parameters are given. Choose the correct one.

Options

A. State variables: Temperature, No. of moles process variable: Internal energy, work done by the gas.
B. State variables: Volume, Temperature process variable: Internal energy, work done by the gas.
C. State variables: work done by the gas, heat rejected by the gas Process variables: Temperature, Volume.
D. State variables: Internal energy, volume process variables: Work done by the gas, heat absorbed by the gas.

Answer

D

Explanation

Internal energy and volume depend upon states.