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Home  >>  JEEMAIN and AIPMT  >>  Physics  >>  Class11  >>  Kinetic Theory of Gases
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Which of the following quantities cannot be zero on an average for the molecules of an ideal gas in equilibrium condition?

(A) kinetic energy (B) velocity (C) momentum (D) accelerator
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Since the motion of molecules is random, velocity, momentum and acceleration can average to zero but kinetic energy being scalar does not average to zero.
answered Jan 28, 2014 by balaji.thirumalai

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