1.

A vessel is partitioned in two equal halves by a fixed diathermic separator. Two different ideal gases are filled in left (L) and right (R ) halves. The rms speed of the molecules in L part is equal to the mean speed of molecules in the R part. Then the ratio of the mass of a molecule in L part to that of a molecule in R part is

Answer»

`sqrt((3)/(2))`
`sqrt((pi)/(4))`
`sqrt((2)/(3))`
`(3pi)/(8)`

Solution :As `(v_(rms))_(L)=(v_(av))_(R)` (GIVEN)
`sqrt((3RT)/(M_(1)))=sqrt((8RT)/(piM_(2)))implies(M_(1))/(M_(2))=(3pi)/(8)`


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