Lect+28+08 - Objectives for Kinetics Lecture 28 •...

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Objectives for Kinetics Lecture 28 Elementary Reaction processes Kinetics and chemical equilibrium Sequential reactions - Rate laws and a plain language understanding of time behavior Steady State approximation is an important method used for studying sequential reaction schemes. - when does it work and how does it work Pre-equilibrium conditions are similar to SS
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Reaction mechanisms The reaction mechanism is a series of elementary reaction steps which combine to yield the correct behavior of the overall reaction A wide range of experimental and theoretical methods are used to determine the correct mechanism for important reactions. Reaction mechanisms often change with changing temperatures, solvents and concentrations.
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Overall Stoichiometric reaction NO 2 + CO CO 2 + NO Reaction Mechanism elementary reaction steps NO 2 + NO 2 NO 3 + NO (slow) NO 3 + CO CO 2 +NO 2 (fast) NO 3 is an intermediate Rate Law? Rate = k
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Lect+28+08 - Objectives for Kinetics Lecture 28 •...

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