Chapter 2, Problem 2.21NP

Interpretation Introduction

Interpretation: The change in enthalpy of 1.75 mol of $\text{PbO}\left(s\right)$ needs to be determined if change in temperature takes place from 825 K to 375 K at constant pressure.

Concept Introduction: The change in enthalpy can be calculated as follows:

  $\Delta H=n{\displaystyle \underset{T_1}{\overset{T_2}{\int }}{C}_{P,m}}dT$

Here, n is number of moles, $C_{P,m}$ is molar heat capacity at constant pressure, $T_1$ is initial temperature and $T_2$ is final temperature.