b. Given that in the isolated

H

atom the

PE

is

2\\\\times (-13.6eV)

, calculate the change in

PE

in going from two isolated

H

atoms to the

H_(2)

molecule. Using the virial theorem, find the change in the total energy and hence the covalent bond energy. How does this compare with the experimental value of

4.51eV

?

Given that in the isolated H atom the PE is 2(13.6eV), calculate the change in PE in going from two isolated H atoms to the H2 molecule. Using the virial theorem, find the change in the total energy and hence the covalent bond energy. How does this compare with the experimental value of 4.51eV