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Question

A container contains certain gas of mass 'm' at high pressure. Some amount of gas has been allowed to escape from the container and after some time the pressure of the gas becomes half and its absolute temperature becomes (23)rd. The amount of gas escaped is :

A
23m
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B
12m
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C
14m
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D
16m
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Solution

The correct option is C 14m
Gas equation is PV=mMRT......... (i)

Again,
P2V=m1MR23T......... (ii)

Dividing (i) by (ii),

2=mm1×32

m1=34m

Gas escaped =m34m=14m

Hence, option C is correct.

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