The standard free energy of formation of AgCl(s) is -110. kJ/mol. Calculate $\Delta$G° for the reaction 2AgCl(s) $\rightarrow$ 2Ag(s) + Cl₂(g)

Question

Quizplus · Accepted Answer

According to the thermodynamic equations, 
$\Delta G° = \sum 
u \Delta G°_f(products) - \sum 
u \Delta G°_f(reactants)$
where $
u$ is the stoichiometric coefficient of each species in the balanced equation.
For the given reaction, 
$\Delta G° = (2	imes 0 + 0) - (2	imes(-110) + 0) = 220	ext{ kJ/mol}$
However, the question asks for the value per mole of the reaction, so dividing by 2 gives the answer of $\boxed{	ext{(E) }220	ext{ kJ}}$.

The Standard Free Energy of Formation of AgCl(s) Is -110 Δ\DeltaΔ

The Standard Free Energy of Formation of AgCl(s) Is -110 $\Delta$