Use average bond energies to estimate ΔHᵣₓₙ for the water-gas shift reaction, which is part of the industrial process for making hydrogen gas.
CO(g) + H₂O(g) → CO₂(g) + H₂(g)
_______ kJ
Bond Bond Energy (kJ./mol)
C ≡ O 1071
O - H 463
C = Oᵃ 799
H - H 436
ᵃThe C = O in CO₂ has a different boncd energy than a C = O bond in other molecules.