In the process of isolating iron from its ores carbon, Ask an Expert

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In the process of isolating iron from its ores, carbon monoxide reacts with iron (III) oxide, as described by the equation:

Fe2O3(s) + 3CO(g) --> 2Fe(s) + 3CO2(g) ?H = -24.8 kJ

The enthalpy change for the combustion of carbon monoxide is:

2CO(g) + O2(g) --> 2CO2(g) ?H = -566 kJ

Use the preceding thermochemical equations to calculate the enthalpy change (in kJ) for the equation:

4Fe(s) + 3O2(g) --> 2Fe2O3(s)

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