MHT CET Medical202626 April 2026Morning ShiftPhysicsThermodynamicsActual
In thermodynamic processes, which one of the following statements is 'NOT' correct ?
Options
- AIn an isothermal process, temperature remains constant.
- BIn an adiabatic process, Pv^ = constant.
- CIn an isochoric process, pressure remains constant.
- DIn an adiabatic process, there is no exchange of heat with the surroundings.
Correct answer
C. In an isochoric process, pressure remains constant.
Step-by-step solution
In an isothermal process, the temperature of the system remains constant ( T = constant). In an adiabatic process, there is no heat exchange with the surroundings ( Q = 0 ) and the relation PV^ = constant holds true for an ideal gas. In an isochoric process, the volume of the system remains constant ( V = constant). The process where pressure remains constant is called an isobaric process. Thus, the statement 'In an isochoric process, pressure remains constant' is incorrect. Answer: In an isochoric process, pressur