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Given: rms velocity of hydrogen at 300K ...

Given: rms velocity of hydrogen at 300K is `1.9 xx 10^3` m/s. The rms velocity of oxygen at 1200K will be

A

`7.6 xx 10^(3) m//sec`

B

`3.5 xx 10^(3) m//sec`

C

`0.95 xx 10^(3) m//sec`

D

`0.475 xx 10^(3) m//sec`

Text Solution

Verified by Experts

The correct Answer is:
C
`U_(H_(2))=sqrt((3Rxx300)/2)=1.9xx10^(3) ms^(-1)`
`U_(O_(2))=sqrt((3Rxx1200)/32)=2/4 sqrt((3Rxx300)/2)`
`=1/2xx1.7xx10^(3) ms^(-1)=0.95xx10^(3) ms^(-1)`
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