We’re being asked to determine the ΔG° at 25 °C for the decomposition of calcium chloride.
Calcium Chloride (CaCl2) decomposes into solid calcium (Ca) and gaseous Chlorine (Cl2)
CaCl2(s) → Ca(s) + Cl2(g)
We can use the following equation to solve for ΔG˚rxn:
Use the table below to answer the questions that follow.
The value of G° at 25 °C for the decomposition of calcium chloride into its constituent elements,
is __________ kJ/mol.