A cubic vessel (with faces horizontal + vertical) contains …

Physics Kinetic Theory of Gases Ideal Gas Equation MCQ (Single Correct)

A cubic vessel (with faces horizontal + vertical) contains an ideal gas at NTP. The vessel is being carried by a rocket which is moving at a speed of 500 m/s in vertical direction. The pressure of the gas inside the vessel as observed by us on the ground

Remains the same because 500 m/s is very much smaller than n rms of the gas

Remains the same because motion of the vessel as a whole does not affect the relative motion of the gas molecules and the walls

Will increase by a factor equal to [v 2rms + (500) 2 ]/v 2rms , where v rms was the original mean square velocity of the gas

Will be different on the top wall and bottom wall of the vessel

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The correct answer is:

As it (i.e., P) remains unaffected as n,R. T and V.

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