Chapter 10.7, Problem 21P

(A)

Interpretation Introduction

Interpretation:

To produce the xy diagram for a binary mixture where $\frac{P_1^{sat}}{P_2^{sat}}=2$

Concept introduction:

The higher value of the relative volatility means that it is easier to separate the components. The relative volatility $\left(\alpha \right)$ from Raoult’s law is given by,

$\begin{array}{c}{\alpha }_{1,2}=\frac{K_1}{K_2}\\ =\frac{P_1^{sat}}{P_2^{sat}}\end{array}$

Here, K-factor for component 1 and 2 is $K_1\text{and}{K}_2$ respectively.

(B)

Interpretation Introduction

Interpretation:

To produce the xy diagram for a binary mixture where $\frac{P_1^{sat}}{P_2^{sat}}=4$

Concept introduction:

The higher value of the relative volatility means that it is easier to separate the components. The relative volatility $\left(\alpha \right)$ from Raoult’s law is given by,

$\begin{array}{c}{\alpha }_{1,2}=\frac{K_1}{K_2}\\ =\frac{P_1^{sat}}{P_2^{sat}}\end{array}$

Here, K-factor for component 1 and 2 is $K_1\text{and}{K}_2$ respectively.