Q114 / 150 · MHT CET 2026 (19 April Shift 1) · Physics
The thermodynamic process in which no work is done by the gas or on the gas is
- Aisothermal process
- Badiabatic process
- Cisobaric process
- Correct answerDisochoric process
Solution
Work done by a gas in a thermodynamic process is given by $W = \int P dV$.
For no work to be done by the gas or on the gas, $W = 0$, which implies $dV = 0$.
This means the change in volume is zero, so the volume remains constant throughout the process.
A thermodynamic process in which the volume remains constant is called an isochoric process.
Answer: isochoric process
For no work to be done by the gas or on the gas, $W = 0$, which implies $dV = 0$.
This means the change in volume is zero, so the volume remains constant throughout the process.
A thermodynamic process in which the volume remains constant is called an isochoric process.
Answer: isochoric process
Hence, the correct answer is option: 'D'.