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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

`20`

B

`25`

C

`80`

D

`75`

Text Solution

Verified by Experts

The correct Answer is:
A
`n_(1) = (P_(1)V)/(RT), n_(2) = (P_(2)V)/(RT)`
`%` of gas leaked `= ((P_(2))/(P_(1)) - 1) xx 100`
`= ((2)/(2.5) - 1) xx 100 = - 20%`
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CP SINGH-KINETIC THEORY OF GASES-Exercises
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  2. The mass of 1 litre of helium under a pressure of 2 atm and at a tempe...

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  4. The gas equation PV//T = constant is true for a constant mass of an id...

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  5. The density of a certain mass of a gas at STP is d. If the pressure of...

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  6. The quantity PV//kT represents

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  7. If pressure of a gas contained in a closed vessel is increased by 0.4%...

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  8. The pressure P, volume V and temperature T of a gas in the jqar A and ...

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  9. A vessel contains 1 mole of O2 gas (relative molar mass 32) at a tempe...

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  10. The pressure of a gas kept in an isothermal container is 200Kpa. If ha...

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  11. The gas in a vessel is subjected to a pressure of 20 atmosphere at a t...

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  12. Two identical cylinders at same temp contains hydrogen at 2.5 atm and ...

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  13. A vessel A has volume V and a vessel B has volume 2V. Both contain som...

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  14. A flask is filled with 13 g of an ideal gas at 27^(@)C and its tempera...

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  15. Air is filled in a bottle and it is corked at 35^(@)C. If the cork can...

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  16. Consider the quantity (MkT)/(pV) of an ideal gas where M is the mass o...

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  17. Two ballons are filled, one with pure He gas and other by air, repecti...

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  18. Two different masses m and 3 m of an ideal gas are heated separately i...

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  19. The pressure exterted on the walls of the container by a gas is due to...

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  20. At constant volume, temperature is increased. Then

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