In thermodynamic processes which of the following statements is not...

In thermodynamic processes which of the following statements is not true?

A. In an isochoric process pressure remains constant

B. In an isothermal process the temperature remains constant

C. In an adiabatic process \(\mathrm{PV}^{\gamma} =\) constant

D. In an adiabatic process the system is insulated from the surroundings