Chemistry II

Chemistry II - Chemistry II Integrated rate laws and...

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Chemistry II 28/01/2008 08:59:00 Integrated rate laws and reaction order Integrated rate law o Linear equation describing reactant concentration over time For A   products: [A] t  = -kt+[A] 0 Zero Order Reactions Linear Reactions: A   products Rate = -k[A]0 = -k  (independent of [A]) Equation: [A] = -kt + [A]0 First Order Reactions Logarithmic Reaction; A   products Rate = -k[A] Equations (look at online notes) In [A] (or log[A]) vs. time is linear K = -slope (for the plot of ln[A] vs. time Second Order Reactions Reaction: A   Products Rate = -k[A]2 Equation: (see online notes) 1/[A] vs. time is linear k = slope (for time)
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Predicting reaction order Determine the order of the reaction A   Products o 1. calculate ln[A] and 1/[A] for all values o 2. plot each column versus time
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Chemistry II - Chemistry II Integrated rate laws and...

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