Problem: For the reaction:2KClO3(s) → 2KCl(s) + 3O2(g)Calculate ΔGºrxn at 25ºC.Express your answer using one decimal place.

FREE Expert Solution

We’re being asked to determine the Gibbs free energy (ΔG°rxn) at 25°C for the given reaction:

2 KClO(s) → 2 KCl (s) + 3 O(g) 

We’re given the ΔH˚f and S˚ of each reactant and product:


ΔH˚f (kJ/mol)

S˚ (J/mol • K)




KCl (s)






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


For this problem, we need to do the following steps:

Step 1: Calculate ΔH˚rxn.

Step 2: Calculate ΔS˚rxn.

Step 3: Use ΔH˚rxn and ΔS˚rxn to calculate for ΔG˚rxn.

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Problem Details

For the reaction:

2KClO3(s) → 2KCl(s) + 3O2(g)

Calculate ΔGºrxn at 25ºC.

Express your answer using one decimal place.

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