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

A gas is enclosed in a vessel at a constant temperature at a pressure of 5 atmosphere and volume 4 litre. Due to a leakage in thhe vessel, after some time, the pressure is reduced to 4 atmosphere. As a result the

A

volume of the gas decreased by `20%`

B

Average K.E. of gas molecule decreases by `20%`

C

`20%` of the gas escaped due to the leakage

D

`25%` of the gas escaped due to the leakage

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The correct Answer is:
C, D
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