1.

Vapour densities of O_(2) and CH_(4) are 32 and 16 respectivley. The ratio of rate of diffusion of CH_(4) to that of O_(2) is

Answer»

`SQRT( 2) : 1 `
`1: sqrt( 2) `
`2: 1`
`1: 2`

SOLUTION :`( r ( CH_(4)))/( r( O_(2))) = sqrt((d ( O_(2)))/( d ( CH_(4)))) = sqrt(( 32 )/( 16)) = sqrt( 2) : 1 `


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