JEE Main 2020PhysicsKinetic Theory of GasesMediumNumerical

JEE Main 2020 — Kinetic Theory of Gases Question with Solution

JEE Main 2020 (04 Sep Shift 1)

Question

A closed vessel contains 0.1 mole of a monoatomic ideal gas at 200 K. If 0.05 mole of the same gas at 400 K is added to it, the final equilibrium temperature (in K) of the gas in the vessel will be close to ______

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Show full solutionCorrect answer: 267
Correct answer
267

Step-by-step explanation

0.1 200+0.05 400=0.15T

T=20+200.15=8003=266.67

=266.67

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About this question

This is a previous-year question from JEE Main 2020, 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.