Chapter 11, Problem 18PE

Interpretation Introduction

Interpretation:

The normal boiling point of ethanol at the given temperature and pressure is to be determined.

Concept introduction:

The relationship between vapor pressure and the temperature is given by the Clausius Clapeyron equation, as shown:

$\log \left(\frac{P_1}{P_2}\right)=\frac{\Delta {\text{H}}_{vap}}{\text{R}}\left(\frac{1}{T_2}-\frac{1}{T_1}\right)$

Here, $\Delta {\text{H}}_{vap}$ is the molar heat of vaporization, $\text{R}$ is the gas constant, $P_1\&P_2$ are the initial and final vapor pressures respectively, and $T_1\&T_2$ are the initial and final temperatures respectively.