JEE Main 2024PhysicsThermodynamicsMediumMCQ

JEE Main 2024 — Thermodynamics Question with Solution

JEE Main 2024 (01 Feb Shift 2)

Question

A diatomic gas (γ=1.4) does 200 J of work when it is expanded isobarically. The heat given to the gas in the process is :

Choose an option

Show full solutionCorrect option: D
Correct answer
D700 J

Step-by-step explanation

For degree of freedom, we can write

γ=1+2f=1.4⇒2f=0.4

⇒f=5

For isobaric process, W=nRΔT=200 J.

Now, we can write

Q=f+22nRΔT

=72×200=700 J

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About this question

This is a previous-year question from JEE Main 2024, 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.