Chapter 15, Problem 4PE

Interpretation Introduction

Interpretation:

The amount of energy is released in the condensation process of $2.3\text{kg}$ of ethanol from the vapor phase to a liquid is to be calculated.

Concept introduction:

Vaporization is a process of conversion of a liquid into gas at its boiling point. During the process of vaporization, the vapor pressure of the liquid is equal to the atmospheric pressure. Heat is supplied to the system during the process of vaporization. The enthalpy change of the process of vaporization is given by the expression as shown below.

$\Delta {\text{H}}_{\text{vap}}=\frac{\text{q}}{\text{m}}$