Chapter 6, Problem 6.102MP

Given the following information, construct a Born-’Habercycle to calculate the lattice energy of ${\text{CrCl}}_{\text{2}}\text{I}\left(s\right)$ :
$\begin{array}{l}{\text{Net energy change for the formation of CrCl}}_{\text{2}}\text{I}\left(s\right)=-\text{42}0\text{ kJ/mol}\\ {\text{Bond dissociation energy for Cl}}_{\text{2}}\left(g\right)=+\text{243 kJ/mol}\\ {\text{Bond dissociation energy for I}}_{\text{2}}\left(g\right)=+\text{151 kJ/mol}\\ {\text{Heat of sublimation for I}}_{\text{2}}\left(s\right)=+\text{62 kJ/mol}\\ \text{Heat of sublimation for Cr}\left(s\right)=+\text{397 kJ/mol}\\ E_{\text{i1}}\text{for Cr}\left(\text{g}\right)=\text{652 kJ/mol}\\ E_{\text{i2}}\text{for Cr}\left(\text{g}\right)=\text{1588 kJ/mol}\\ E_{\text{i3}}\text{for Cr}\left(\text{g}\right)=\text{2882 kJ/mol}\\ E_{\text{ea}}\text{for Cl}\left(\text{g}\right)=-\text{349 kJ/mol}\\ E_{\text{ea}}\text{for I}\left(\text{g}\right)=-\text{295 kJ/mol} \end{array}$