CHEM 1A Lecture Notes - Lecture 2: Homogeneous Catalysis, Heterogeneous Catalysis, Reactive Intermediate
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Catalysts: catalyst is not consumed in the reaction. Pathway then has a: a greater fraction of molecules can cross the lower barrier of the catalyzed path lower activation energy. , and he change on equilibrium composition reverse reaction is also accelerated homogeneous catalyst : if the catalyst is present in the same phase as the reactants example : 2 hz oz lag , 2 h2o (e) t 02cg , catalyst : br . Not consumed acts over and over again. Br , cag) t h2o , cag ) 2 br - Cag ) t h2o , cag ) t 2 h + can + 2 h + ( a 9) + 02 ( 9 " can bk la 9) + 2 h2o. Reduction to br - in : concentration of homogeneous catalyst can appear in rate law then oxidation back to br , in , y br - cancel out. Br, catalyst again example : cag , t 2 ns.
