Chapter 5, Problem 87E

Interpretation Introduction

Interpretation: Correct formula for Freon-12 refrigerantshould be determined.

Concept introduction:Graham’s law of effusion gives relation of rate of effusion with molar mass. Rate of effusion is inversely related to square root of molar mass of its particle. Expression of this law is as follows:

  $\frac{\text{Effusion rate of A}}{\text{Effusion rate of B}}=\sqrt{\frac{M_{\text{B}}}{M_{\text{A}}}}$

Where,

• $M_{\text{B}}$ is molar mass of gas $\text{B}$ .
• $M_{\text{A}}$ is molar mass of gas $\text{A}$ .