Chemistry - Atomic Structure Question with Solution | TestHub

The figure below is the plot of potential energy versus internuclear distance$\left(\mathrm{d}\right)$of${\mathrm{H}}_2$molecule in the electronic ground state. What is the value of the net potential energy${\mathrm{E}}_0$(as indicated in the figure) in$\mathrm{kJ} {\mathrm{mol}}^{-1},$for$\mathrm{d}={\mathrm{d}}_0$at which the electron-electron repulsion and the nucleus-nucleus repulsion energies are absent? As reference, the potential energy of$\mathrm{H}$atom is taken as zero when its electron and the nucleus are infinitely far apart. Use Avogadro constant as$6.023\times {10}^{23} {\mathrm{mol}}^{-1}.$Mark total potential energy for 2 H-atom (per mole) as answer.