Question

FeO(s) + CO(g) → Fe(s) + CO₂ (g)

calculate the standard enthalpy change for this reaction from these reactions of iron oxides with CO

1) 3Fe₂O₃ (s) + CO(g) → 2Fe₃O₄ (s) + CO₂(g) H= -47 kj
2) Fe₂O₃ (s) + 3CO (g) → 2Fe(s) + 3CO₂(g) H= -25 kj
3) Fe₃O₄ (s) + CO(g) → 3FeO(s) + CO₂(g) H= 19kjar

Answer 1

To calculate the standard enthalpy change for the given reaction, use Hess's Law and the enthalpy changes provided for the reactions of iron oxides with CO.

Step-by-step explanation:

To calculate the standard enthalpy change for the given reaction, we can use Hess's Law and the enthalpy changes provided for the reactions of iron oxides with CO.

1. Fe₃O₄(s) + CO(g) → 3FeO(s) + CO₂(g) ΔH = 19 kJ/mol
2. 3Fe₂O₃ (s) + CO(g) → 2Fe₃O₄ (s) + CO₂(g) ΔH = -47 kJ/mol
3. Fe₂O₃ (s) + 3CO (g) → 2Fe(s) + 3CO₂(g) ΔH = -25 kJ/mol

We can use the provided reactions to rearrange the equations and cancel out the common reactants and products to obtain the desired reaction equation:

FeO(s) + CO(g) → Fe(s) + CO₂(g)

By summing up the enthalpy changes of the reactions, we can determine the standard enthalpy change for the given reaction.