When a gas is heated at constant volume while pressure is applied, what is the amount of work done by the gas?

Thermodynamics MCQs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

PPSCFPSCNTSPakistan govt jobs
Subject
Thermodynamicsmechanical-engineering-mcqs › thermodynamics
Published
26 Jan 2019
Last updated
28 May 2026

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Explanation

Since the volume remains unchanged during heating, the gas does not expand or compress, resulting in zero work done. Work done by a gas is given by the product of pressure and change in volume, which is zero when volume is constant.

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