1.

Molecular weight of a gas that diffuses twice as rapidly as the gas with molecular weight 64 is

Answer»

16
8
64
6.4

Solution :`M_(1)=64, r_(2) = 2r_(1)`
`M_(2)=M_(1)[(r_(1))/(r_(2))]^(2)=64xx(1)/(4)=16`


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