Calculate the ΔH for the following reaction: 3 Fe + 4 H2O → Fe3O4 + 4 H2
Given the following information:
FeO + H2 → Fe + H2O ΔH = +25 kJ
3 FeO + ½ O2 → Fe3O4 ΔH = -318 kJ
H2 + ½ O2 → H2O ΔH = -242 kJ