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Solution: Given the following dataFe2O3 (s) + 3 CO (g) → 2 Fe (s) + 3 CO2 (g)         ΔH° = -23 kJ3Fe2O3 (s) + CO (g) → 2 Fe3O4 (s) + CO2 (g)     ΔH° = -39 kJFe2O3 (s) + CO (g) → 3FeO (s) + CO2 (g)            ΔH° = 18 kJcalculate ΔH° for the reactionFeO (s) + CO (g) → Fe(s) + CO2 (g)

Problem

Given the following data

Fe2O3 (s) + 3 CO (g) → 2 Fe (s) + 3 CO2 (g)         ΔH° = -23 kJ

3Fe2O3 (s) + CO (g) → 2 Fe3O4 (s) + CO2 (g)     ΔH° = -39 kJ

Fe2O3 (s) + CO (g) → 3FeO (s) + CO(g)            ΔH° = 18 kJ

calculate ΔH° for the reaction

FeO (s) + CO (g) → Fe(s) + CO2 (g)