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NEET levelSingle correct optionDifficulty 1 of 3ig166

For an ideal gas, the correct order of molecular speeds at a given temperature is

A $u_{mp} > u_{av} > u_{rms}$
B $u_{rms} > u_{av} > u_{mp}$
C $u_{av} > u_{rms} > u_{mp}$
D $u_{rms} = u_{av} = u_{mp}$

Answer: B

u_{rms} : u_{av} : u_{mp} = 3 : 8/ π : 2 = 1.732 : 1.596 : 1.414

. So

u_{rms} > u_{av} > u_{mp}

.

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