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In the two vessels of same volume, atomi...

In the two vessels of same volume, atomic hydrogen and helium at pressure 1 atm and 2 atm are filled. If temperature of both the sample is same then average speed of hydrogen atoms `lt C_(H) gt` will be related to that of helium `lt C_(He) gt` as

A

` lt C_(H) gt = sqrt(2) lt C_(He) gt`

B

`lt C_(H) gt = lt C_(He) gt`

C

`lt C_(H) gt = 2 lt C_(He) gt`

D

`lt C_(H) gt = ( lt C_(He) gt )/( 2)`

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The correct Answer is:
A
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