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25. Calculate the standard enthalpy change for the following chemical equation. 4FeO (s) + O2 (g) 2Fe2O3 (s) Use the following thermochemical equations to

25.

Calculate the standard enthalpy change for the following chemical equation.

4FeO (s) + O2 (g) →   2Fe2O3 (s)

Use the following thermochemical equations to solve for the change in enthalpy.

Fe (s) + ½ O2 (g) → FeO (s)                   ΔH =-269 kJ/mol

2Fe (s) + 3/2O2 (g) → Fe2O3 (s)                   ΔH= -825 kJ/mol

 -2726 kJ/mol
556 kJ/mol
-556 kJ/mol
574 kJ/mol
-574 kJ/mol

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