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The rms velocity molecules of a gas of d...

The `rms` velocity molecules of a gas of density `4 kg m^(-3)` and pressure `1.2 xx 10^(5) N m^(-2)` is

A

`900 m//s`

B

`120 m//s`

C

`300 m//s`

D

`600 m//s`

Text Solution

Verified by Experts

The correct Answer is:
D
`"r.m.s. velocity"=sqrt((3P)/(d))`
`=sqrt((3xx1.2xx10^(5)xxNm^(-2))/(4kgm^(-3)))`
`=sqrt((3xx1.2xx10^(5)kgms^(-2)m^(-2))/(4kgm^(-3)))`
`=300ms^(-1)`
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