Using the data provided, calculate the multiple bond energy (kJmol^-^1) of
C≡C bond in C_2H_2. That energy is (take the bond energy of a C−H bond as 350kJmol^-^1):
2C(s)+H_2(g)⟶C_2H_2(g);ΔH=225kJmol^-^1
2C(s)⟶2C(g);ΔH=1410kJmol^-^1
H_2(g)⟶2H(g);ΔH=330kJmol^-^1
a. 1165
b. 837
c. 865
d. 815