Chemistry - Thermochemistry Question with Solution | TestHub

At$298.2 \mathrm{K}$the relationship between enthalpy of bond dissociation (in$\mathrm{kJ} {\mathrm{mol}}^{-1}$) for hydrogen$\left({\mathrm{E}}_{\mathrm{H}}\right)$and its isotope, deuterium$\left({\mathrm{E}}_{\mathrm{D}}\right)$, is best described by: