Which of the following gas molecules have equal total kinetic energy and translational kinetic energy?
Which of the following gas molecules have equal total kinetic energy and translational kinetic energy?
(a) O2
(b) He
(c) CH4
(d) N2
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Correct option (b) He
Explanation:
The total kinetic energy of a molecule is the sum of its translational, vibrational and rotational kinetic energies. The monatomic molecules do not possess vibrational and rotational kinetic energies. Hence, noble gases (like He, Ar etc.) fulfill the criteria.
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