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  4. Which pair of the gaseous species diffuse through a small jet with the same rate of diffusion at same P and T :-

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Q. Which pair of the gaseous species diffuse through a small jet with the same rate of diffusion at same $P$ and $T$ :-

NTA AbhyasNTA Abhyas 2022

Solution:

Graham's law states that the rate of diffusion or of effusion of a gas is inversely proportional to the square root of its molecular weight.
$\frac{r_{1}}{r_{2}}=\sqrt{\frac{M_{2}}{M_{1}}}$
$M_{1}=M_{2}$