Chemistry - Thermochemistry Question with Solution | TestHub

Oxidising power of chlorine in aqueous solution can be determined by the parameters indicated below: $$\frac{1}{2}{\mathrm{Cl}}_2(\mathrm{g})\stackrel{\frac{1}{2}{\Delta }_{\mathrm{ass}}{\mathrm{H}}^{\ominus }}{⟶}\mathrm{Cl}(\mathrm{g})\stackrel{{\Delta }_{\mathrm{eg}{H}^{\ominus }}}{⟶}{\mathrm{Cl}}^{-}(\mathrm{g})\stackrel{{\Delta }_{\mathrm{m}{\mathrm{on}}^{H^{\ominus }}}^{⟶}}{⟶}{\mathrm{Cl}}^{-}(\mathrm{aq}).$$ The energy involved in the conversion of $\frac{1}{2}{\mathrm{Cl}}_2(\mathrm{g})$ to ${\mathrm{Cl}}^{-}(\mathrm{g})$ (using the data, ${\Delta }_{\text{diss }}{H}_{{\mathrm{Cl}}_2}^{\ominus }=240{\mathrm{kJmol}}^{-1},{\Delta }_{\mathrm{eg}}{H}_{\mathrm{cl}}^{\ominus }=-349{\mathrm{kJmol}}^{-1},{\Delta }_{\mathrm{hyd}}{\mathrm{H}}_{\mathrm{Cl}}^{\ominus }=-381{\mathrm{kJmol}}^{-1})$ will be