J.R. S. answered 07/21/17
Ph.D. University Professor with 10+ years Tutoring Experience
CH4 (methane) is formed from C(g) and 4H(g), so if you look at the reverse reaction, you see that CH4 is formed from 1 mole of C and 4 moles H both in the gaseous state. The energy needed to break the 4 C-H bonds in methane will be the same as the energy generated when C(g) + 4H(g) combine to form CH4. Not sure if this answers your question, but that's my take on the problem.