Chapter 14, Problem 14.8P

Interpretation Introduction

Interpretation:

The amount of energy evolved as heat when $1.00\text{ mol}$ of ${\text{BaCl}}_2$ is formed has to be determined.

Concept Introduction:

Thermodynamics is a study of energy transfers that can be done by either heat or work. The energy transferred through work involves force. When work is positive then system gains energy while when work is negative then system loses energy. The expression to calculate work is as follows:

  $w=-P\left(V_{\text{f}}-V_{\text{i}}\right)$        (1)

Here $P$ is pressure, $V_{\text{f}}$ is the final volume, and $V_{\text{i}}$ is initial volume.