BACK NEXT Chapter 19, Problem o40 Two containers are at the same temperature. Th

Question

BACK NEXT Chapter 19, Problem o40 Two containers are at the same temperature. The first contains gas with pressure p1, molecular mass m1, and root-mean square speed vrmss- The second contains gas with pressure 3P1 molecular mass m2, and average speed vavga 3vrms1. Find the mass ratio mym2. Number Units the tolerance is +/-8% Click if you would like to show work for this question Open Show Work LINK TO SAMPLE PROBLEM Question Attempts: o of 6 used SAVE FOR LArR SUBMIT ANSWER Copyright o 2000-2017 by John wiley & s, Inc. or related companies. All rights reserved version 4.22.3.4 privacy policy 2000-2017 ohn wiley s sons, Inc. All Rights Reserved A Division of John Moley sons Inc en/shared assignment

Explanation / Answer

Vrms = sqrt(3 k T / m )

Vrms = sqrt(3 k T / m1) ..... (i)

Average speed, Vavg = sqrt( 8 k T / pi m)

3 vrms = sqrt(8 k T / pi m2) .... (ii)

(ii)/(i) =>

3 = sqrt(8 m1 / 3pi m2)

9 = 8 m1 / 3 m2

m1/ m2 = 27pi / 8

m1 / m2 = 10.6 ............Ans

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