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Lecture+6+-+Chemical+Kinetics

Lecture+6+-+Chemical+Kinetics - Problem Set#1 returned at...

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Problem Set #1: returned at end of class today. Practice Midterm: see course website. Review Session: Tue Aug 16 th at 7pm in 179 Chem. Midterm: Chapters 2.6-2.9, 9 and 10; Wed Aug 17 th
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Comparing Reaction Rate Theories RT H R S B e e h T k k o o Δ Δ = RT E A Ae k = Arrhenius Theory: Collision Theory: Transition State Theory: Ca 2+ (aq) + SO 4 2- (aq) [Ca 2+ ---SO 4 2- ] CaSO 4 (s) Δ S tot = Δ S reactants + Δ S solvent Δ S solvent is positive because H 2 O less ordered around the neutral transition state. Δ S reactants is negative because reactants more disordered than transition state. If | Δ S solvent | > | Δ S reactants |, then Δ S tot > 0, usually indicates a fast reaction rate. μ π T k d B A Z B AB 8 ] ][ [ 2 11 = RT E A e B A Z P k = ] ][ [ 11 = 10 11 M -1 s -1 A + B Product k
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