THERMODYNAMICS SUB-MENU ThermoDynamics Sub-menu Problem #0002ChaptersChapters


225.


Problem 20.57P (HRW)


Two containers are at the same temperature. The first contains gas with pressure, molecular mass , and root mean square speed . The second contains gas with pressure , molecular mass , and average speed . We have to find the mass ratio .


Solution:           Click For PDF Version

 At temperature T, the average speed is given by the relation

where m is molecular mass. And the root-mean-square rms) speed is given by

We have been given that

This implies that

or

or