JEE Main 2017PhysicsThermal Properties of MatterMediumMCQ

JEE Main 2017 — Thermal Properties of Matter Question with Solution

JEE Main 2017 (02 Apr)

Question

An external pressure P is applied on a cube at 0°C so that it is equally compressed from all sides. K is the bulk modulus of the material of the cube and α is its coefficient of linear expansion. Suppose we want to bring the cube to its original size by heating. The temperature should be raised by:

Choose an option

Show full solutionCorrect option: B
Correct answer
BP3αK

Step-by-step explanation

B=-PdVV

dVV=-PB

dV=-PVB

ΔV=VγΔTΔVV=γΔT

ΔVV=3αΔT

K=PΔVV=P3αΔT

ΔT=P3αk

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About this question

This is a previous-year question from JEE Main 2017, covering the Thermal Properties of Matter 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.