JEE Main 2021PhysicsThermodynamicsMediumMCQ

JEE Main 2021 — Thermodynamics Question with Solution

JEE Main 2021 (18 Mar Shift 2)

Question

An ideal gas in a cylinder is separated by a piston in such a way that the entropy of one part is S1 and that of the other part is S2. Given that S1>S2. If the piston is removed then the total entropy of the system will be:

Choose an option

Show full solutionCorrect option: D
Correct answer
DS1+S2

Step-by-step explanation


; S1>S2

After piston is removed

|
; Stotal=S1>S2

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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.