JEE Main 2022 · PhysicsMultiple choiceSingle correctEasyConceptual

JEE Main 26 June 2022, Shift 2, Physics Q37

Question 37 of 90 in this shift, Physics question 7 of 30, Section A.

A flask contains argon and oxygen in the ratio of 3:2 in mass and the mixture is kept at

27^\circ

C. The ratio of their average kinetic energy per molecule respectively will be :

(1)3:2
(2)9:4
(3)2:3
(4)1:1Official answer

Official answer

Option 4

NTA final key.

Chapter: Kinetic Theory
Topic: Kinetic Theory of Gases
Idea tested: Law of Equipartition

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Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.