The Solubility Product Constant at 25 ^$\circ$ C for AgI(s) in Water Has the Value 8

Multiple Choice

The solubility product constant at 25 ^$\circ$ C for AgI(s) in water has the value 8.3 * 10^-17. Calculate $\Delta$ G_rxn at 25 ^$\circ$ C for the process AgI(s) $\leftrightharpoons$ Ag⁺(aq) + I^- (aq) where [Ag⁺] = 9.1 * 10^-9 and [I^-] = 9.1 * 10^-9.

A) +4.4 kJ/mol
B) +91.7 kJ/mol
C) 0.0 kJ/mol
D) -91.7 kJ/mol
E) -4.4 kJ/mol