Question

A mixture of $H_2$ and $O_2$ in $2:1$ volume is allowed to diffuse through a porous partition. What is the composition of gas coming out initially?

• A. $1:2$
• B. $4:1$
• C. $8:1$
• D. $1:4$

Answer 1

Answer: (C)

$8:1$

rate of diffusion $=\frac{r_1}{r_2}=\frac{V_1}{V_2}\times \sqrt{\frac{M_2}{M_1}}$

$=\frac{2}{1}\times \sqrt{\frac{32}{2}}=\frac{8}{1}$