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A cubical box of side 1 m contains heliu...

A cubical box of side 1 m contains helium gas (atomic weight=4) at pressure `100 N.m^-2` During an observation time of 1s, an atom travelling with rms speed parallel to one of the edges of the cube was found to make 500 hits with a perpendicular wall without any collisions with other atoms.
Evaluate the average kinetic energy per atom.

A

`3.31 times 10^-21 J`

B

`3.75 times 10^6 J`

C

`3.81 times 10^-15 J`

D

`3.22 times 10^3 J`

Text Solution

Verified by Experts

The correct Answer is:
B
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