Answer to Question #171894 in General Chemistry for Erin

Question

The production of iron and carbon dioxide from iron(II) oxide and carbon monoxide is an exothermic reaction. How much energy is produced when 3.4 mol of Fe2O3 react with an excess of CO?

Fe2O3 (s) + 3CO (g)2Fe (s) + 3CO2 (g) + 26.3 kJ

Answer 1

Fe₂CO₃ (s) + 3CO (g) $\to$ 2 Fe (s) + 3 CO₂ (g)

$\Delta H$ = +26.3 KJ

When one mole of iron(III) oxide reacts 26.3 kJ of energy is required and for 3.4 moles of iron(III) oxide 3.4 times more energy is required.

3.4 mol of Fe₂CO₃ × $\frac{26.3KJ}{1 mole of Fe_2CO_3}$

= 89.42 KJ