Chem208_Lecture_23_Color

Chem208_Lecture_23_Color - Today: Thermodynamics (Chapter...

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Unformatted text preview: Today: Thermodynamics (Chapter 19) - Free Energy - Equilibrium - T dependence of K (19-7) PS9 is due Friday, 4/18, at 2:00 Exams will be handed back in the lobby after lecture today; key is posted Mean: 53.9 Median: 53 Standard Deviation: 19.3 High: 100 1 Review • For a spontaneous reaction at constant T and P: ∆Gsys = ∆Hsys - T∆Ssys < 0 2 Consider the reaction: 2 N2(g) + O2 (g) ⇔ 2 N2O (g) ∆G° = +208.4 kJ What is the tendency for this reaction to occur spontaneously under non-standard conditions? 3 ∆G = ∆G° + RTlnQ 0 = ∆G° + RTlnK ∆G° = –RTlnK 4 5 ...
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This note was uploaded on 03/29/2009 for the course CHEM 2080 taught by Professor Davis,f during the Spring '07 term at Cornell.

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Chem208_Lecture_23_Color - Today: Thermodynamics (Chapter...

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