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Question
In a mixture of nitrogen and helium kept at room tempertaure. As compared to a helium molecule nitrogen molecule hits the wall
Options
A.With greater average speed
B.with smaller average speed
C.with greater average kinetic energy
D.with smaller average kinetic energy.
Solution
Vav α 
∴ oxygen molecule hits the wall with smaller average speed
∴ oxygen molecule hits the wall with smaller average speed
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