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A gas is enclosed in a vessel at a press...

A gas is enclosed in a vessel at a pressure of `2.5 atm`. Due to leak in the vessel., after some time the pressure is reduced to `2 atm`, temperature remaining unchanged. The percentage of gas that has leaked out is

A

`40`

B

`15`

C

`20`

D

`25`

Text Solution

Verified by Experts

The correct Answer is:
C
`P prop m` when `V` & `T` are constant `rArr (DeltaP)/(P) = (Deltam)/(M)`
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