The ratio of rates of diffusion of gases $A$ and $B$ is $1: 0.707$. If the molecular weight of $B$ is 32 , the molecular weight of $A$ is

Question

Aicharya · Accepted Answer

Rate of diffusion is inversely proportional to the square root of molecular weight. $\begin{aligned} \text {i.e. } \quad R & \propto \frac{1}{\sqrt{M}} \ \therefore \quad \frac{R_A}{R_B} & =\sqrt{\frac{M_B}{M_A}} \ \frac{1}{0.707} & =\sqrt{\frac{32}{M_A}} \ \frac{1}{0.499849} & =\frac{32}{M_A} \ M_A & =15.99 \approx 16 \end{aligned}$

The ratio of rates of diffusion of gases \(A\) and \(B\) is \(1: 0.707\). If the molecular weight of \(B\)…

Solution