Chapter 5, Problem 5.73QE

Interpretation Introduction

Interpretation:

Energy-level diagram that represents the Hess’s law has to be determined for the given reaction shown below,

  $\begin{array}{l}\text{2Cu}\left(s\right)\text{ + }C{l}_2\left(g\right)\underset{}{\to }\text{ 2}\text{Cu}Cl\left(s\right)\Delta H=-274.4kJ\left(1\right)\\ \\ \text{2}\text{Cu}Cl\left(s\right)\text{ + }C{l}_2\left(g\right)\underset{}{\to }\text{ 2}\text{Cu}C{l}_2\left(s\right)\Delta H=-165.8kJ\left(2\right)\\ \\ \text{Cu}\left(s\right)\text{ + }C{l}_{\text{2}}\left(g\right)\underset{}{\to }{\text{ CuCl}}_2\left(s\right)\Delta H=?\left(3\right)\end{array}$