Nitrogen gas is at $300^{\circ} C$ temperature. The temperature (in $K$) at which the $rms$ speed of a $H _{2}$, molecule would be equal to the $rms$ speed of a nitrogen molecule, is........
(Molar mass of $N _{2}$ gas $28\, g$ )
JEE MAIN 2020, Medium
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The temperature corresponding to the point ' $K$ ' is $...........\,{}^{\circ}\,C$
