Which of the following gases will have the hi | vedclass

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(A) According to Graham's Law of Diffusion,the rate of diffusion $(r)$ is inversely proportional to the square root of the molar mass $(M)$: $r \propt

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$NH_3$

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(A) According to Graham's Law of Diffusion,the rate of diffusion $(r)$ is inversely proportional to the square root of the molar mass $(M)$: $r \propto \frac{1}{\sqrt{M}}$.Calculating the molar masses:$M(NH_3) = 14 + 3(1) = 17 \ g/mol$$M(N_2) = 2(14) = 28 \ g/mol$$M(CO_2) = 12 + 2(16) = 44 \ g/mol$$M(O_2) = 2(16) = 32 \ g/mol$Since $NH_3$ has the lowest molar mass,it will have the highest rate of diffusion.Therefore,the correct option is $(A)$.

Which of the following gases will have the highest rate of diffusion?

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