1.

50 ml of hydrogen diffuses through a small hole from a vessel in 20 minutes. Time taken for 40 ml of oxygen to diffuse under similar conditions will be

Answer»

12 min.
64 min.
8 min
32 min.

Solution :`( R ( H_(2)))/( r( O_(2))) = ( 50 // 20)/( 40 //t ) = SQRT( ( 32)/( 2))`
or ` ( 50)/( 20) XX ( t )/( 40) = 4 `
or ` t = ( 4 xx 20 xx 40)/( 50) = 64` min


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