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Equal weights of methane and hydrogen ar...

Equal weights of methane and hydrogen are mixed in an empty container at `25^(@)C`. The fraction of the total pressure exerted by hydrogen is

A

`1//12`

B

`8//9`

C

`1//6`

D

`16//17`

Text Solution

Verified by Experts

The correct Answer is:
B
`(P_(CH_(4)))/(P_(H_(2))) = (n_(CH_(4)))/(n_(H_(2))) = (g_(CH_(4))//(M_(0))_(CH_(4)))/(g_(H_(2))//(M_(0))_(H_(2))) = (2)/(16) = (1)/(8) rArr (P_(H_(2)))/(P_(H_(2)) + P_(CH_(4))) = (8)/(9)`
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