Chapter 10, Problem 94RQ

Interpretation Introduction

Interpretation:

The ratio of the rate of effusion of both the gases in a given mixture is to be calculated.

Concept Introduction:

Graham’s law explains the phenomenon of diffusion and effusion in gaseous molecules. In diffusion, gaseous molecules mix with other gaseous molecules, or intermingle with the molecules of air because of their random motions. Effusion is the movement of gaseous molecules from system to vacuum through a small hole or a narrow space.

Graham’s law explains that the effusion rate of a gas in a mixture is indirectly proportional to the molecular mass $\left(M\right)$ of the respective gas.

Mathematically written as:

$\text{effusion rate }\alpha \frac{1}{\sqrt{M}}$