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50 ml of hydrogen diffuses through a sma...

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

A

12 min.

B

64 min.

C

8 min

D

32 min.

Text Solution

Verified by Experts

The correct Answer is:
B
`( 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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