Textbook Question 4E.9

[Suzy Matinyan]

Hi!
I have been doing the assigned textbook problems, but I have no idea what is going on in this problem:
Benzene is more stable and less reactive than would be predicted from its Kekulé structures. Use the data in Table 4E.3 to calculate the lowering in molar energy when resonance is allowed between the Kekulé structures of benzene.
Thanks for all the the help!

[Chem_Mod]

Benzene without resonance is just 3 C=C bonds + 3 C-C bonds; add up the bond enthalpies for 3 C=C bonds + 3 C-C bonds and compare it to the enthalpy for 6 CC bonds with resonance, which is an entry in the table. This is all explained straightforwardly in the solution manual, make sure you are checking your work with the solution manual as you go.