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Iron(III) oxide reacts with carbon monoxide to produce elemental iron and carbon dioxide.

Fe2O3(s) + 3CO(g) ===> 3CO2(g) + 2Fe(s)
Determine the enthalpy change of this reaction.

User Gursewak Singh
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2 Answers

16 votes
16 votes

Answer:

the option is (A)

Step-by-step explanation:

The balanced chemical equation is

4Fe

(g)

+3O

2(g)

→2Fe

2

O

3(g)

Thus, 4 moles of Fe reacts with 3 moles of oxygen to form 2 moles of ferric oxide.

So 8 moles of Fe will react with 3×

4

8

=6 moles of oxygen to form 2×

4

8

=4 moles of ferric oxide.

9.0−6=3.0 moles of oxygen will remain as excess.

User CrimsonChris
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2.5k points
26 votes
26 votes

The enthalpy change for the reaction between Iron(III) oxide and carbon monoxide to produce elemental iron and carbon dioxide can be found using standard enthalpy of formation values and Hess's Law, which involves subtracting the total enthalpy of reactants from the total enthalpy of products.

The enthalpy change of a reaction can be determined using the balanced chemical equation and the enthalpy values of each reactant and product. In this case, the enthalpy change of the reaction:

Fe2O3(s) + 3CO(g) → 3CO2(g) + 2Fe(s)

depends on the enthalpy values of Fe2O3, CO, CO2, and Fe. By subtracting the sum of the enthalpy values of the reactants from the sum of the enthalpy values of the products, you can find the enthalpy change of the reaction..The enthalpy change for the reaction of Iron(III) oxide with carbon monoxide to produce elemental iron and carbon dioxide is not directly provided in the provided information. However, determining the enthalpy change typically involves experimental data or using standard enthalpy of formation values from thermodynamic tables not given here. In a typical classroom problem, you would find the enthalpy of each compound (reactants and products) in a reference book or a provided chart and use Hess's Law to calculate the enthalpy change of the overall reaction.

Here's a step-by-step guide to conceptually understand how one might determine the enthalpy change, assuming relevant data were available:

  1. Find the standard enthalpy of formation for each reactant and product.
  2. Multiply the enthalpies of formation by the respective coefficients in the balanced equation.
  3. Subtract the sum of the enthalpies of the reactants from the sum of the enthalpies of the products to find the enthalpy change of the reaction.

User Mwalter
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2.9k points