JEE Main 2021PhysicsThermodynamicsMediumMCQ

JEE Main 2021 — Thermodynamics Question with Solution

JEE Main 2021 (27 Jul Shift 1)

Question

In the reported figure, there is a cyclic process ABCDA on a sample of 1 mol of a diatomic gas. The temperature of the gas during the process A→B and C→D are T1 and T2 T1>T2 respectively.

Choose the correct option out of the following for work done if processes BC and DA are adiabatic.

Choose an option

Show full solutionCorrect option: B
Correct answer
BWAD=WBC

Step-by-step explanation

Work done in adiabatic process =-nRγ-1 Tf-Ti

∴ WAD=-nRγ-1 T2-T1

and WBC=-nRγ-1 T2-T1

∴ WAD=WBC

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About this question

This is a previous-year question from JEE Main 2021, covering the Thermodynamics chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.