Using the data provided, calculate the multiple bond energy (kJ mol-1) of C ≡ C bond in C2H2. Given that the heat of formation of C2H2 = 225 kJ mol-1. (take the bond energy of a C-H bond as 350 kJ mol-1.):
2C(s) → 2C(g), ΔH = 1410 kJ mol-1
2C(s) → 2C(g), ΔH = 1410 kJ mol-1
H2(g) → 2H(g), ΔH = 330 kJ mol-1
1
1165
2
837
3
865
4
815