The total energy for the hydrogen molecule is 11789737 Hartr

The total energy for the hydrogen molecule is -1.1789737 Hartrees. what is the binding energy ( in KJ/mol ) of the molecule ?

Eb =Et-E0

whr Et = total energy of H2 molecule which is -32.08ev

and E0 = ground state energy of hydrogen molecuel which is -1.17ev

hence Eb= -32.08+1.17

= -30.31ev

= -4.84 *10^-21 kJ

as 1ev = 1.6* 106-22kj

and 1 hartree = 27.2107 ev