Using the data provided, calculate the multiple bond energy (kJmol−1) of a C≡≡C bond in C2H2. Given that the heat of formation of C2H2 is 225kJmol−1 (take the bond energy of a C−−H bond as 350kJmol−1)
2C(s)⟶2C(g);ΔH=1410kJmol−1
H2(g)⟶2H(g);ΔH=330kJmol−1