JEE Main 2019PhysicsKinetic Theory of GasesMediumMCQ

JEE Main 2019 — Kinetic Theory of Gases Question with Solution

JEE Main 2019 (09 Apr Shift 1)

Question

An HCl molecule has rotational, translational and vibrational motions. If the rms velocity of HCl molecules in its gaseous phase is ν- , m is its mass and kB is Boltzmann's constant, then its temperature will be:

Choose an option

Show full solutionCorrect option: C
Correct answer
Cmν- 23kB

Step-by-step explanation

Vrms=3kBTm 
v-=3kBTm
T=mv-23kB

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About this question

This is a previous-year question from JEE Main 2019, 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.