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Lecture 11

CHMA11 Lecture 11

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Department
Chemistry
Course
CHMA11H3
Professor
Jamie Donaldson
Semester
Winter

Description
CHMA11 Lecture 11 Chemical KineticsFebruary 03 2012Reaction Mechanisms involve collision between two reagent or one reagentrate law of overall reaction can only be determine experimentally but if we know an elementary reaction we can get rate law from the reaction equationthe overall rate has to represent the rate of the slow steprules1reaction steps must add up to give the overall reaction2the mechanism must predict the rate law seen in the labthe rules tells us if the sequence of reactions is actually possible to explain the overall reactiondoesnt prove that it is the mechanism but shows its the potential mechanismMechanisms with a Fast Initial Stepsometimes a reaction has a step elementary reactions that can go forwards and backwards if the rates are equal forwards and backwardsequilibriumExamplethe three reaction can explain the kinetics of the observed react
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