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The R.M.S. Speed of the molecules of a ...

The `R.M.S`. Speed of the molecules of a gas of density `kg m^(-3)` and pressure `1.2xx10^(5)Nm^(-2)` is:

A

`120 ms^(-1)`

B

`300 ms^(-1)`

C

`900 ms^(-1)`

D

`600 ms^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
B
`u = sqrt((3P)/(d))`
`= sqrt((3 xx 1.2 xx 10^(5))/(4)) = 3 xx 10^(2) m s^(-1)`
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