NEET 2014 Chemistry Gibbs Free Energy MCQ Question
Using the Gibbs energy change, ΔG° = +63.3 kJ, for the following reaction. Ag₂CO₃(s) ⇌ 2Ag⁺(aq) + CO₃²⁻(aq); the Ksp of Ag₂CO₃ in water at 25°C is (R = 8.314 J K⁻¹ mol⁻¹)
3.2 × 10⁻²⁶
8.0 × 10⁻¹²
2.9 × 10⁻³
7.9 × 10⁻²
Correct Answer
Detailed Explanation
Using ΔG° = -RT ln K, solve for Ksp: ln K = -ΔG°/RT. Substituting the values gives Ksp = 3.2 × 10⁻²⁶.
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