Chemistry Practice Problems Gibbs Free Energy Practice Problems Solution: Consider the reaction 2 Fe2O3(s) + 3 C(s) → 4 Fe(...

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Solution: Consider the reaction 2 Fe2O3(s) + 3 C(s) → 4 Fe(s) + 3 CO2(g), ΔH° = 462 kJ, ΔS° = 558 J • K -1. Calculate the equilibrium constant for this reaction at 525°C. 1. 1.9 x 106 2. 2.8 x 10-2  3. 8.07 x 10-2 4. 3.04 x 10-3 5. 5.20 x 10-7      

Problem

Consider the reaction

2 Fe2O3(s) + 3 C(s) → 4 Fe(s) + 3 CO2(g),

ΔH° = 462 kJ, ΔS° = 558 J • K -1. Calculate the equilibrium constant for this reaction at 525°C.

1. 1.9 x 106

2. 2.8 x 10-2 

3. 8.07 x 10-2

4. 3.04 x 10-3

5. 5.20 x 10-7