Chemistry - Thermochemistry Question with Solution | TestHub

The combustion of benzene$\left(\mathrm{l}\right)$gives$\mathrm{C}{\mathrm{O}}_2\left(\mathrm{g}\right)$and${\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)$. Given that heat of combustion of benzene at constant volume is$-3263.9\mathrm{ }\mathrm{k}\mathrm{J}\mathrm{m}\mathrm{o}{\mathrm{l}}^{-1}$heat of combustion (in kJ$\mathrm{m}\mathrm{o}{\mathrm{l}}^{-1}$) of benzene at constant pressure will be

$\left(\mathrm{R}=8.314\mathrm{J}{\mathrm{K}}^{-1}\mathrm{m}\mathrm{o}{\mathrm{l}}^{-1}\right)$