Compare the bond enthalpies of the nitrogen-nitrogen single, double, and triple bonds. Based on this information, what is the average pi-bond contribution to bond enthalpy?

single: 163kj/mol
double: 418kj/mol
triple: 941kj/mol

1 answer

941 - 418 = 523

418 - 163 = 255

523 + 255 = 778

778/2 = 389 kj/mol

(did it on mastering chemistry, answer was correct)