Q .     A gas molecule of mass M at the surface of the Earth has kinetic energy equivalent to `0^oC`. If it were to go up straight without colliding with any other molecules, how high it would rise?
Assume that the height attained is much less than radius of the earth. (`k_B` is Boltzmann constant)

JEE 2014 Mains Paper 4
A

`0`

B

`\frac {273 k_B}{2 Mg}`

C

`\frac {546 k_B}{3 Mg}`

D

`\frac {819 k_B}{2 Mg}`

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