The smelting of iron occurs in a blast furnace, as represented by the following overall equation. Step I 3Fe₂O3(s) + CO(g) - CO₂(g) + 2Fe3O4(s) A,H° = -47.2 kJ Step II Fe3O4(s) + CO(g) - CO₂(g) + 3FeO(s) AH° +19.4 kJ Step III FeO(s) + CO(g) → CO₂(g) + Fe(s) A,H° = -11.0 kJ The molar enthalpy of reaction for Fe2O3(s) in the reaction represented by Step I is Record your 3-digit answer. Include sign; do not include units. ◆ kJ/mol

Chemistry: The Molecular Science
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Chapter12: Chemical Equilibrium
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The smelting of iron occurs in a blast furnace, as represented by the following overall equation.
Step I 3Fe₂O3(s) + CO(g) → CO₂(g) + 2Fe3O4(s) A,Hº = -47.2 kJ
Step II Fe3O4(s) + CO(g) - CO₂(g) + 3FeO(s) A,H°
+19.4 kJ
Step III FeO(s) + CO(g) → CO₂(g) + Fe(s)
A,H°
-11.0 kJ
The molar enthalpy of reaction for Fe2O3(s) in the reaction represented by Step I is
Record your 3-digit answer. Include sign; do not include units.
Which steps in abov process can be represented by the following potential energy diagram?
Potential Energy
(kJ)
Select one:
Step II only
Steps I and III
Steps I, II and III
None of the above steps
Reactants
◆
◆
Products
12
Reaction Pathway
Identify each of the following statements as true or false, as they pertain to the above 3 steps.
In Step II, 6.47 kJ of energy are released when 1 mol of FeO(s) is produced.
In Step III, 11.0 kJ of energy will be released when 1 mol of Fe(s) is produced.
In Step III, 33.0 kJ of energy would be released if 3.00 mol of Fe(s) were produced.
kJ/mol
Transcribed Image Text:The smelting of iron occurs in a blast furnace, as represented by the following overall equation. Step I 3Fe₂O3(s) + CO(g) → CO₂(g) + 2Fe3O4(s) A,Hº = -47.2 kJ Step II Fe3O4(s) + CO(g) - CO₂(g) + 3FeO(s) A,H° +19.4 kJ Step III FeO(s) + CO(g) → CO₂(g) + Fe(s) A,H° -11.0 kJ The molar enthalpy of reaction for Fe2O3(s) in the reaction represented by Step I is Record your 3-digit answer. Include sign; do not include units. Which steps in abov process can be represented by the following potential energy diagram? Potential Energy (kJ) Select one: Step II only Steps I and III Steps I, II and III None of the above steps Reactants ◆ ◆ Products 12 Reaction Pathway Identify each of the following statements as true or false, as they pertain to the above 3 steps. In Step II, 6.47 kJ of energy are released when 1 mol of FeO(s) is produced. In Step III, 11.0 kJ of energy will be released when 1 mol of Fe(s) is produced. In Step III, 33.0 kJ of energy would be released if 3.00 mol of Fe(s) were produced. kJ/mol
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