JEE Main 2019ChemistryStates of MatterHardMCQ

JEE Main 2019 — States of Matter Question with Solution

JEE Main 2019 (12 Jan Shift 1)

Question

The volume of gas A is twice than that of gas B. The compressibility factor of gas A is thrice than that of gas B at same temperature. What are the pressures of the gases for equal number of moles?

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Show full solutionCorrect option: A
Correct answer
A2PA=3PB

Step-by-step explanation

PV=ZnRT

VA=2VB and ZA=3ZB

P=ZnRTV

PAPB=ZAVBZBVA=3ZB×VBZB×2VB=32

2PA=3PB

At constant T and moles; P∝ZV
 

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About this question

This is a previous-year question from JEE Main 2019, covering the States of Matter chapter of Chemistry. 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.