JEE Main 2021PhysicsKinetic Theory of GasesMediumMCQ

JEE Main 2021 — Kinetic Theory of Gases Question with Solution

JEE Main 2021 (25 Feb Shift 1)

Question

A diatomic gas, having CP=72R and CV=52R, is heated at constant pressure. The ratio dU:dQ:dW

Choose an option

Show full solutionCorrect option: C
Correct answer
C5:7:2

Step-by-step explanation

dU=nCvdT⇒dQ=nCpdT⇒dW=PdV=nRdT (isobaric process)

dU:dQ:dW:Cv:Cp:R=5R2:7R2:R=5:7:2.

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About this question

This is a previous-year question from JEE Main 2021, covering the Kinetic Theory of Gases 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.