Chapter 16, Problem 16A.9AE

Interpretation Introduction

Interpretation:

The decrease in the mass of the solid in a period of $2.00\text{h}$ when the molar mass of the solid in the cell is $260\text{g}{\text{mol}}^{-1}$ with a vapour pressure of $0.835\text{Pa}$ at $400\text{K}$ has to be calculated.

Concept introduction:

Effusion is a method in which gas flows from a container through a hole of significantly lower diameter as compared to the molecule's mean free path.  The rate of effusion is expressed by the formula shown below.

    $Z_{\text{W}}{A}_{\text{ο}}=\frac{p{A}_{\text{ο}}}{{\left(2\pi mkT\right)}^{1/2}}$