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Consider a gas with density 'rho' and ov...

Consider a gas with density `'rho'` and `overlinec` as the root mean square velocity of its molecules contained in a volume. If the system moves as whole with velocity 'v' , then the pressure exerted by the gas is

A

`(1)/(3)p(overlinec)^(2)`

B

`(1)/(3)rho(overlinec+v)^(2)`

C

`(1)/(3)rho(overlinec-v)^(2)`

D

`(1)/(3)rho(c^(-2)-v)`

Text Solution

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The correct Answer is:
A
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