JEE Main 2019PhysicsKinetic Theory of GasesEasyMCQ

JEE Main 2019 — Kinetic Theory of Gases Question with Solution

JEE Main 2019 (09 Apr Shift 1)

Question

For given gas at 1 atm pressure, rms  speed of the molecules is 200 m/s at 127°C. At 2 atm pressure and at 227° C, the rms speed of the molecules will be:

Choose an option

Show full solutionCorrect option: D
Correct answer
D1005 m/s

Step-by-step explanation

Vrms=3RTM ⇒Vrms∝T
V1V2=T1T2
200V2=400500
V2=1005 m/s

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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.