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What will be the r.m.s. speed of a gas a...

What will be the r.m.s. speed of a gas at `800^(@)K` ?

A

Four times the value of 200 K

B

Half the value at 200 K

C

Twice the value at 200 K

D

Same as at 200 K

Text Solution

Verified by Experts

The correct Answer is:
C
`C=sqrt((3RT)/(M))orCpropsqrtT`
`C_(2)/C_(1)=sqrt((T_(2))/(T_(1)))=sqrt(800/200)=2`
`thereforeC_(2)=2C_(1)` or 2 times the value at 200 K
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MARVEL PUBLICATION-KINETIC THEORY OF GASES ,THERMODYNAMICS AND RADIATION-TEST YOUR GRASP - 9
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