At the same pressure, the rate of diffus...

At the same pressure, the rate of diffusion of a gas at `927^(@)C` will be ……………………. Times that at `27^(@)C`.

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The correct Answer is:

`r prop sqrt(T)`
`:. (r_(1))/(r_(2))=sqrt((T_(1))/(T_(2)))=sqrt((300K)/(1200K))=sqrt((1)/(4))=(1)/(2) :. r_(2)=2r_(1)`

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