In the figure shown, n molecules of a gas of mass nm move only along x-axis (i.e. either towards +ve x-axis or –ve x-axis) inside a cube of edge 1m. Half molecules have speed v and other half have 2v. The pressure on a wall ⊥ to x-axis is -
A
2.5 n m v 2
B
C
n m v 2
D
None
Text Solution
Verified by ExpertsThe correct answer is:
A
Pressure = (momentum transferred to wall in one second)/Area of wall
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