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NEET levelSingle correct optionDifficulty 1 of 3ig120

At the same temperature, which gas has the highest root mean square speed?

A $O X_{2}$
B $N X_{2}$
C $CO X_{2}$
D $H X_{2}$

Answer: D

u_{rms} = 3 RT / M

. At a fixed

T

the lightest gas,

H X_{2}

(2), has the highest rms speed.

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