Thermodynamics for Ochem | Entropy, ΔG, & Keq | 6.2 Organic Chemistry

Chad continues to review the basic principles of thermodynamics in the context of organic chemistry. He begins with a review of entropy, the relevant factors that affect it, and the relevance for organic chemistry. He then reviews Gibbs free energy (ΔG) and how it is related to when a reaction is spontaneous (- ΔG) or nonspontaneous (+ ΔG). He then reviews the relationship between ΔG, ΔH, andΔS and how to predict under what conditions a reaction will be spontaneous:

ΔG = ΔH – T(ΔS)

Chad concludes the lesson by discussing the relationship between the standard ΔG and the equilibrium constant (Keq) and how either can be used to determine when a reaction will favor the reactants or products at equilibrium:

ΔG° = -RTlnKeq

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00:00 Lesson Introduction
00:43 Review of Entropy
05:22 Gibbs Free Energy and Spontaneity
06:47 ΔG, ΔH, and ΔS
15:04 ΔG and Keq (ΔG = -RTlnKeq)

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