A cubic vessel (with face horizontal + vetical ) contains an ideal gas at NTP. The vessel is being carried by a rocket which is moving at a speed of `500 ms^(-1)` in vertical direction. The pressure of the gas inside the vessel as observed by us on the ground.

Options

A. Remains the same because `500ms^(-1)` is very much smaller than `upsilon_(rms)` of the gas.
B. remains the same because motion of the vessel as a whole does not affect the relative motion of the gas molecules and the walls.
C. will increase by a factor equal to `[upsilon)(rms)^(2) + (500)^(2)[//upsilon_(rms)^(2)` where `upsilon_(rms)` was the original nean square velocity of the gas.
D. will be different on the top wall and bottom wall of the vessel.

Answer

B

Explanation

The pressure of the gas inside the vessel, as observed by us, on the ground remains the same. This is because motion of the vessel as a whole does not affect the relative motion of gas molecules and the walls of the vessel.