Hydrogenation of Double and Triple Bonds Is an Important Industrial

Hydrogenation of double and triple bonds is an important industrial process. Calculate (in kJ) the standard enthalpy change ΔH° for the hydrogenation of ethyne (acetylene) to ethane. H-C≡C-H(g) + 2H₂(g) → H₃C-CH₃(g)
Bond: C-C C≡C C-H H-H
Bond energy (kJ/mol) : 347 839 413 432

A) -296 kJ
B) -51 kJ
C) 51 kJ
D) 296 kJ
E) 381 kJ