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The rate of diffusion of a gas in a diff...

The rate of diffusion of a gas in a diffusion tube is `1/2sqrt(7)`. Molecular weight of the gas ( in g `mol^(-1)`) is

A

12

B

28

C

24

D

44

Text Solution

Verified by Experts

The correct Answer is:
b
`r=1/(2sqrt(7))`
`r=1/sqrt(M), r^(2)=1/M`
`(1/(2sqrt(7)))^(2)=1/M`
`therefore M = 28g mol^(-1)`
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