The root mean square velocity of the molecules in a sample of Helium is 5/7th that of the molecules in a sample of Hydrogen. If the temperature of Hydrogen sample is 0 °C, then the temperature of the Helium sample is about

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6 0C

0 K

273 0C

100 0C

answer is A.

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Detailed Solution

THe=5049×273 =278.57 K≃6 C 0

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