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 variables : `" "` Internal energy, work done by the gas .
B. State variables: `" "` Volume Temperature
Process variables : `" "` 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.