Helium molecule is two times heavier than hydrogen molecule…

Chemistry Gaseous State ( Not In Syllabus ) Telangana & AP CET Previous Year Question Single Correct MCQ

Published on: August 13, 2026

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

two times higher than a hydrogen molecule

four times higher than a hydrogen molecule

same as that of a hydrogen molecule

half of a hydrogen molecule

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The correct answer is:

Average kinetic energy of gas molecule is directly proportional to the temperature and it is not dependent on the nature of the gas.
Average kinetic energy
Thus, hydrogen and helium have same kinetic energy at same temperature.

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