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Question

The Graham's law of diffusion is:


A
C1C2=d2d1
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B
C21C22=d2d1
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C
C1C2=d2d1
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D
C1C2=d1d2
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Solution

The correct option is C $$\displaystyle \frac{C_1}{C_2} = \sqrt{\frac{d_2}{d_1}}$$
Graham's law of diffusion is
$$c  \alpha  {d}^{-1/2}$$
where $$c = rms  velocity$$
$$d = density$$
$$\frac{{c}_{2}}{{c}_{1}} = {(\frac{{d}_{2}}{{d}_{1}})}^{-1/2}$$
or
$$\frac{{c}_{1}}{{c}_{2}} = {(\frac{{d}_{2}}{{d}_{1}})}^{1/2}$$
so answer is C.

Chemistry

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