Chapter 11.2, Problem 11.2.1SR

Interpretation Introduction

Interpretation:

The molar mass of unknown gas has to be calculated.

Concept Introduction:

Diffusion:

Diffusion is a process by which gases mix due to random motion and repeated collision of molecules. The ratio of diffusion of two different gases is given by Graham’s law of diffusion

$\frac{{\text{u}}_{\text{A}}}{{\text{u}}_{\text{B}}}\text{=}\sqrt{\frac{{\text{M}}_{\text{B}}}{{\text{M}}_{\text{A}}}}$

Here, ${\text{u}}_{\text{A}}{\text{ and u}}_{\text{B}}$ is diffusion rates of gases ${\text{A and B, M}}_{\text{A}}{\text{ and M}}_{\text{B}}$ are molar masses respectively.