1.

The root mean square speed of one mole of a monoatomic gas having molecular mass M is U_("rms"). The relation between the average kinetic energy (E ) of the gas and U_("rms") is :

Answer»

`U_(rms) =SQRT((3E)/(2M))`
`U_(rms)=sqrt((2E)/(3M))`
`U_(rms) =sqrt((2E)/(M))`
`U_(rms)=sqrt((E )/(3M))`

Solution :`U_(rms) =sqrt((3RT)/(M), KE =(3)/(2) RT`
`therefore U_(rms) =sqrt((2E)/(M))`
Hence, (C ) is the correct ANSWER.


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