QJEEM21Pha7da: JEE Main 2021 Physics - Class 11 JEEM21Pha7da Solution: The rms speeds of the molecules of Hydrogen, Oxygen and Carbon…

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The rms speeds of the molecules of Hydrogen, Oxygen and Carbon dioxide at the same temperature are V_H, V_O and V_C respectively then :

Accepted Answer

V_{R M S} = \sqrt{\frac{3 R T}{M_{W}}}

At the same temperature

V_{R M S} \propto \frac{1}{\sqrt{M_{W}}}

\Rightarrow

V_H > V_O > V_C

Option (a)

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