Lectures - 1 General Chemistry 4th edition, Hill, Petrucci,...

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1 General Chemistry 4 th edition, Hill, Petrucci, McCreary, Perry
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2 General Chemistry 4 th edition, Hill, Petrucci, McCreary, Perry Catalysis A catalyst increases the reaction rate without itself being used up in a chemical reaction. In general, a catalyst works by changing the mechanism of a chemical reaction. Often the catalyst is consumed in one step of the mechanism, but is regenerated in another step. The pathway of a catalyzed reaction has a lower activation energy than that of an uncatalyzed reaction, so more molecules at a fixed temperature have the necessary activation energy.
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3 General Chemistry 4 th edition, Hill, Petrucci, McCreary, Perry Homogeneous Catalysis (occurs in a single phase) Ozone decomposition catalyzed by chlorine atoms has a much lower activation energy and proceeds much more rapidly than the uncatalyzed reaction
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General Chemistry 4 th edition, Hill, Petrucci, McCreary, Perry O 3 O 2 ClO Cl Cl ClO O 2 O O . . . . . . + + + + + O
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This note was uploaded on 12/19/2011 for the course CHEM 1372 taught by Professor Staff during the Spring '08 term at University of Houston.

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Lectures - 1 General Chemistry 4th edition, Hill, Petrucci,...

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