(Solved): The combustion of octane produces heat according to the equation \( 2 \mathrm{C}_{8} \mathrm{H}_{18 ...

The combustion of octane produces heat according to the equation \( 2 \mathrm{C}_{8} \mathrm{H}_{18}(\mathrm{I})+25 \mathrm{O}_{2}(\mathrm{~g}) \rightarrow 16 \mathrm{CO}_{2}(\mathrm{~g})+18 \mathrm{H}_{2} \mathrm{O}(\mathrm{I}) \quad \Delta \mathrm{H}_{\mathrm{r} x \mathrm{n}}^{\mathrm{o}}=-11,020 \mathrm{~kJ} / \mathrm{mol} \) What is the heat of combustion per gram of octane? \[ \begin{array}{l} -5,510 \mathrm{~kJ} / \mathrm{g} \\ -96.5 \mathrm{~kJ} / \mathrm{g} \\ -48.2 \mathrm{~kJ} / \mathrm{g} \\ -193 \mathrm{~kJ} / \mathrm{g} \\ -6.292 \times 10^{5} \mathrm{~kJ} / \mathrm{g} \end{array} \]