Problem: Calculate the enthalpy change (ΔH°rxn ) for the following reaction at 25°C. The value of ΔH°f in kJ/mol is given below.  2 Fe2O3(s) + 6 CO(g) → 4 Fe(s) + 6 CO2(g) A. −1380 kJ B. −49.6 kJ C. 541 kJ D. −3350 kJ E. −24.8 kJ

Problem Details

Calculate the enthalpy change (ΔH°rxn ) for the following reaction at 25°C. The value of ΔH°f in kJ/mol is given below.

2 Fe2O3(s) + 6 CO(g) → 4 Fe(s) + 6 CO2(g)

A. −1380 kJ

B. −49.6 kJ

C. 541 kJ

D. −3350 kJ

E. −24.8 kJ

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Enthalpy of Formation concept. You can view video lessons to learn Enthalpy of Formation. Or if you need more Enthalpy of Formation practice, you can also practice Enthalpy of Formation practice problems.

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Based on our data, we think this problem is relevant for Professor Mong's class at PITT.