choical Chemistry Reaction Kinetic Measurement of reaction rates The concentration of a reactant or product as a function of time Chemical method Cooling the sample removing a catalyst Diluting the mixture At constant T Adding a species At intervals Slows down or stop the reaction Rapidly analyze chemical Reaction vessels compositions of the mixture10 Physical Chemistry Measurement of Reaction Rates Chemical Method The concentration of a reactant or product as a function of time Reaction vessels At constant T At intervals Slows down or stop the reaction Rapidly analyze chemical compositions of the mixture Cooling the sample removing a catalyst Diluting the mixture Adding a species Reaction Kinetics