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Helium molecule is two times heavier tha...

Helium molecule is two times heavier than hydrogen molecule at 298 K. According to kinetic theory, the average kinetic energy of helium at 298 K is

A

two times higher than a hydrogen molecule

B

four times highher than a hydrogen molecule

C

same as that of a hydrogen molecule

D

half of a hydrogen molecule

Text Solution

Verified by Experts

The correct Answer is:
C
Average kinetic energy of gas molecules depend upon temperature and not on the nature of gas.
Average kinetic energy = (3/2) KT
Thus, hydrogen and helium have same kinetic energy at same temperature.
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