Chapter 6.6, Problem 4RCF

Given the following information

$\begin{array}{c}\text{Pb}(s)+{\text{PbO}}_2(s)+2{\text{H}}_2{\text{SO}}_4(l)\stackrel{}{\to }2{\text{PbSO}}_4(s)+2{\text{H}}_2\text{O}(l)\Delta H_{rxn}^{\text{o}}=-509.2\text{kJ/mol}\\ {\text{SO}}_3(g)+{\text{H}}_2\text{O}(l)\stackrel{}{\to }{\text{H}}_2{\text{SO}}_4(l)\Delta H_{\text{rxn}}^{\text{o}}=-130.3\text{kJ/mol}\\ \text{determine}\Delta H_{\text{rxn}}^{\text{o}}\text{for}\text{Pb}(s)+{\text{PbO}}_2(s)+{\text{SO}}_3(g)\stackrel{}{\to }2{\text{PbSO}}_4(s).\end{array}$