JEE Main 2013ChemistryStates of MatterEasyMCQ

JEE Main 2013 — States of Matter Question with Solution

JEE Main 2013 (07 Apr)

Question

For gaseous state, if most probable speed is denoted by C*, average speed by C¯  and root mean square speed by C, then for many molecules, what is the ratios of these speeds?

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Show full solutionCorrect option: A
Correct answer
AC* :C- :C= 1 :1.128 :1.225

Step-by-step explanation

C*=2RTM       1.414:1.595:1.732

C-=8πRTM

C=3RTM

2    :  8 3.14    :  3

1   : 1.128   : 1.225

C*: C¯:C=1 : 1.128 : 1.225

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About this question

This is a previous-year question from JEE Main 2013, 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.