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Question

For a monoatomic gas, kinetic energy = E. The relation with rms velocity is:

A
u=(2Em)12
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B
u=(3E2m)12
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C
u=(E2m)12
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D
u=(E3m)12
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Solution

The correct option is C u=(2Em)12
The expression for the kinetic energy of a monoatomic gas is (E)=32kT.
The expression for the kinetic energy is =3kTm.
Thus, the rms velocity is given as:
u=2Em.

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