Chapter 5, Problem 5.9IA

Interpretation Introduction

Interpretation:

The activity of $\text{A}$ could be used to calculated activity of $\text{B}$ over a composition range by use of formula $\left(\ln \frac{a_{\text{B}}}{r}=\varphi -\varphi \left(0\right)+{\displaystyle {\int }_0^r\frac{\varphi -1}{r}}\text{d}r\right)$ has to be shown.

Concept Introduction:

The activity of a solute dissolved in the solution is its effective concentration in the solution. The symbol of activity of a solute is $a$.

The osmotic coefficient indicates the deviation of a solute or solvent present in the solution from the ideal solution.