Chemistry Gaseous State ( Not In Syllabus ) JEE Advanced Previous Years Question Single Correct MCQ
Published on: August 13, 2026

Helium atom is two times heavier than a hydrogen molecule at 298 K, the average kinetic energy of helium is :

A
two times that of hydrogen molecule
B
same as that of the hydrogen molecule
C
four times that of a hydrogen molecule
D
half that of a hydrogen molecule

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Text Solution

Verified by Experts
The correct answer is:
B

Average K.E. = RT and T is constant 298 K

∴ K.E. is same for all gases at same Temperature.

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