At 298 , K,assuming ideal behaviour,the avera | vedclass

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(D) The correct option is $D$. Average kinetic energy depends only upon the temperature and is independent of the mass or type of gas molecules. For a

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same as that of a hydrogen molecule

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(D) The correct option is $D$. Average kinetic energy depends only upon the temperature and is independent of the mass or type of gas molecules. For any ideal gas,the average kinetic energy per molecule is given by the formula $(K.E.)_{avg} = \frac{3}{2}kT$,where $k$ is the Boltzmann constant and $T$ is the absolute temperature. Since both deuterium $(D_2)$ and hydrogen $(H_2)$ are at the same temperature $(298 \, K)$,their average kinetic energies are equal.

At $298 \, K$,assuming ideal behaviour,the average kinetic energy of a deuterium molecule is

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