Chapter 5, Problem 4Q

Interpretation Introduction

Interpretation:

The conclusion about the homogeneity of the distillate in the fractional distillation of ethanol-water mixture should be determined. Also, whether the mixture has a constant boiling point or not and is pure compound or not is to be determined.

Concept introduction:

The fractional distillation is a technique that is used to separate various components or fractions from a mixture on the basis of their volatilities. The fractional distillation can be used if the boiling point difference between the components is less than $75°\text{C}$. Fractional distillation is better than the simple distillation due to the low boiling point range. It is used to separate useful substances from crude oil in oil refineries.

A mixture with uniform composition and properties throughout is called homogenous mixture.