Chapter 11.2, Problem 1CP

Interpretation Introduction

Interpretation:

The temperature of diethyl ether is to be determined at the given vapor pressure.

Concept introduction:

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

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

Here, $\Delta {\text{H}}_{vap}$ is the molar heat of vaporization, $\text{R}$ is the gas constant, $P_1\text{ and }{P}_2$ are the vapor pressures, and $T_1\text{ and }{T}_2$ are the temperatures.

To convert a temperature from degree Celsius to Kelvin, the expression is as follows:

${\text{K = }}^{\text{o}}\text{C}+273$

To convert a temperature from Kelvin to degree Celsius, the expression is as follows:

${}^{\text{o}}\text{C}=\text{K }-273$