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

question 58

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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Definitions:

Prosencephalon

The embryonic structure that develops into the forebrain, encompassing regions responsible for complex cognitive, sensory, and motor functions.

Front Brain

Refers to the frontal lobes of the brain, responsible for executive functions such as decision-making, planning, social behavior, and impulse control.

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The largest part of the brain, encompassing the cerebral cortex and several subcortical structures, responsible for complex sensory and neural functions.

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Group of structures in the brain involved in coordinating movement, behavior, and emotion.