# Problem: Calculate the standard change in Gibbs free energy for the following reaction at 25 °C. 6 Cl2(g) + 2Fe2O3 (s) → 4 FeCl3(s) + 3 O2(g)

###### FREE Expert Solution

We can use the following equation to solve for ΔG˚rxn:

Note that we need to multiply each G° by the stoichiometric coefficient since G˚ is in kJ/mol.

The given reaction is

6 Cl2(g) + 2Fe2O3 (s) → 4 FeCl3(s) + 3 O2(g)

From textbook or internet, we have

ΔG° Cl2(g = 0

ΔG° Fe2O3 (s) = -742.2 kJ/mol

ΔG° FeCl3(s) = -334.0 kJ/mol

ΔG° O2(g) = 0

85% (120 ratings) ###### Problem Details

Calculate the standard change in Gibbs free energy for the following reaction at 25 °C.

6 Cl2(g) + 2Fe2O3 (s) → 4 FeCl3(s) + 3 O2(g)

Frequently Asked Questions

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 Gibbs Free Energy concept. You can view video lessons to learn Gibbs Free Energy. Or if you need more Gibbs Free Energy practice, you can also practice Gibbs Free Energy practice problems.