Lecture4 - Reaction Rates and Rate Laws Reading 12.1 to 12.4 HW Page 580 21 23 27 30 34 36 37 Kinetics Reactants Products How transformation is

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Reaction Rates and Rate Laws Reading: 12.1 to 12.4 HW: Page 580 # 21, 23, 27, 30, 34, 36, 37
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Kinetics Reactants → Products How transformation is achieved *rate at which reaction occurs *factors that affect the rate *reaction pathway *factors that affect the pathway
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Rates Change in amount / Change in time (e.g. Miles / Hour) For Chemical Reactions ∆ moles / ∆ time ∆ concentration / ∆ time ∆ pressure / ∆ time
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Relative Rates A → 2 B Start with all A and no B How will rate of A’s disappearance compare to B’s appearance? Concentration vs time plot?
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N 2 (g) + 3 H 2 (g) → 2 NH 3 (g) NH 3 (g) made at 0.10 mol / L s. * Rate of H 2 disappearance? * Rate of N 2 disappearance? * Conc. vs. time graph?
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Rate Laws Reaction: A → B Rate Law: Rate = k [A] n k = rate constant, n = order of reaction Reaction: A + B → C Rate Law: Rate = k [A] n [B] m n = order with respect to A m = order with respect to be B n + m = overall order *k, n, m must be determined by experiment
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This note was uploaded on 08/26/2011 for the course CHEM 104 taught by Professor Quigley during the Spring '08 term at CUNY Hunter.

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Lecture4 - Reaction Rates and Rate Laws Reading 12.1 to 12.4 HW Page 580 21 23 27 30 34 36 37 Kinetics Reactants Products How transformation is

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