The Equilibrium Constant for the Reaction AgBr(s) Ag⁺(aq)+ Br^-

question 110

Multiple Choice

The equilibrium constant for the reaction AgBr(s) Ag⁺(aq) + Br^- (aq) is the solubility product constant,K_sp = 7.7 × 10^-13 at 25°C.Calculate ΔG for the reaction when [Ag⁺] = 1.0 × 10^-2 M and [Br^-] = 1.0 × 10^-3 M.Is the reaction spontaneous or nonspontaneous at these concentrations? (R = 8.314 J/K • mol)

• A)ΔG = 69.1 kJ/mol,nonspontaneous
• B)ΔG = -69.1 kJ/mol,spontaneous
• C)ΔG = 97.5 kJ/mol,spontaneous
• D)ΔG = 40.6 kJ/mol,nonspontaneous
• E)ΔG = -97.5 kJ/mol,nonspontaneous

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