I can't get the answer for this question, its about bond enthalpies (1 Viewer)

[daisy_22]

I literally don't know what to do, can someone help me with this question!!

 

[wizzkids]

To atomise a molecule we have to break it up into individual atoms.
OK, so categorise the bonds, and count the bonds. There are four C-H covalent bonds and one B-B covalent bond.
Can you answer the question now?