Question

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

• A. In an adiabatic process $P{V}^{\gamma }$ = constant
• B. In an adiabatic process the system is insulated from the surroundings
• C. In an isochoric process pressure remains constant
• D. In an isothermal process the temperature remains constant

Answer 1

Answer: (C)

In an isochoric process pressure remains constant

1. In an adiabatic process $P{V}^{\gamma }$ = constant.

2. In an adiabatic process, the system is insulated from the surroundings. An adiabatic process is one that occurs without the transfer of heat or mass of substances between a thermodynamic system and its surroundings. So in the adiabatic process insulation from surroundings is required.

3. In an isochoric process, volume remains constant

4. In an isothermal process, the temperature remains constant.