Question:medium

Mean velocity, most probable velocity and root mean square velocity of gas molecules are approximately in the ratio:

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Recall vmp : vavg : vrms = 1 : 1.128 : 1.225, then reorder to match the question.
Updated On: Jul 3, 2026
  • 1.13 : 1 : 1.23
  • 1.23 : 1 : 1.13
  • 1.23 : 1.13 : 1
  • 1 : 1.13 : 1.23
Show Solution

The Correct Option is A

Solution and Explanation

sqrt(2)=1.414, sqrt(8/pi)=1.596, sqrt(3)=1.732. Order mean:mp:rms = 1.596:1.414:1.732. Normalize by 1.414: 1.128:1:1.225 ≈ 1.13:1:1.23.
\[\boxed{1.13:1:1.23}\]
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