The relative rate of diffusion of an unknown gas () as compared to oxygen () is: — States of Matter and Gaseous State Chemistry Question
Question
The relative rate of diffusion of an unknown gas ($M_w = 128$) as compared to oxygen ($O_2$) is:
Answer: D
💡 Solution & Explanation
According to Graham's Law, $r_1/r_2 = \sqrt{M_2/M_1}$. Thus, $r_{unknown}/r_{O2} = \sqrt{32/128} = \sqrt{1/4} = 1/2$.
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