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Helium atom is two times heavier than a hydrogen molecule at. 298K. The average KE of helium is

a) 2 times of \[H_{2}\] molecule
b) same as that of \[H_{2}\] molecule
c) 4 times that of hydrogen molecule
d) \[\frac{1}{2}\]that of \[H_{2}\] molecule

Answer: b
Explanation:
q94

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