For PbI2(s) ⇋ Pb2+(aq) + 2 I−(aq), K = 1.4 × 10−8 at 25 °C and the standard Gibbs energy of formation of PbI2(s) is −173.64 kJ mol−1. Calculate the standard Gibbs energy of formation of PbI2(aq).

For PbI2(s) ⇋ Pb2+(aq) + 2 I−(aq), K = 1.4 × 10−8 at 25 °C and the standard Gibbs energy of formation of PbI2(s) is −173.64 kJ mol−1. Calculate the standard Gibbs energy of formation of PbI2(aq).

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter16: Thermodynamics: Directionality Of Chemical Reactions

Section: Chapter Questions

Problem 91QRT: Actually, the carbon in CO2(g) is thermodynamically unstable with respect to the carbon in calcium...

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Question

For PbI₂(s) ⇋ Pb²⁺(aq) + 2 I⁻(aq), K = 1.4 × 10⁻⁸ at 25 °C and the standard Gibbs energy of formation of PbI₂(s) is −173.64 kJ mol⁻¹. Calculate the standard Gibbs energy of formation of PbI₂(aq).

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