Chapter 13, Problem 35E

Write an equation for the combustion of one mole of benzene, ${\text{C}}_{\text{g}}{\text{H}}_{\text{g}}\left(\text{l}\right)$ , and use data from Appendix D to determine ${\Delta }_r\text{G°}$ at 298 K if the products of the combustion are (a) ${\text{CO}}_{\text{2}}\left(\text{g}\right)$ and ${\text{H}}_2\text{O}\left(g\right)$ . Describe how you might determine the difference between the values obtained in (a) and (b) without having either to write the combustion equation or to determine ${\Delta }_{r}G°$ values for the combustion reactions.