2es o2g gt 2feos h -5440 kj 4fes 3o2g gt 2fe2o3s h , Ask an Expert

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2Fe(s) + O2(g) => 2FeO(s) ?H = -544.0 kJ 4Fe(s) + 3O2(g) => 2Fe2O3(s) ?H = -1648.4 kJ Fe3O4(s) => 3Fe(s) + 2O2(g) ?H = +1118.4 kJ Given the data above, determine the heat of reaction, ?H, for the reaction below: Reaction: Fe2O3(s) + FeO(s) => Fe3O4(s)

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