In a thermodynamics process which one of the following statement is not true ?

Options

A. In an isochoric process pressure remains constant.
B. In an isothermal process temperature remains constant.
C. In an adiabatic process `PV^r` = constant.
D. In an adiabatic process the system is insulated from the surrounding.

Answer

A

Explanation

In an isochoric process volume remains constant.