Chapter 3: Rate Laws

Examples of Rate Laws

First Order Reactions

            (1)       

                         

 

            (2)       

                         

 

            (3)       

                       

 

            (4)       

                         

                        While overall this reaction is first order, it is 1/3 order in ethylene and 2/3 order in oxygen.

 

            (5)       

                         

                       

 

            (6)       

                         

                       

 

            ⁽⁷⁾        

                         

                        where  and

 

Second Order Reactions

            (1)       

                         

                       

                        This reaction is first order in ONCB, first order in ammonia and overall second order.

 

            (2)       

                         

                        This reaction is first order in CNBr, first order in CH₃NH₂ and overall second order.

 

            ⁽³⁾        

                         with K_C = 1.08 and

 

Nonelementary Reactions

            ⁽¹⁾        

                         Cumene                  Benzene                 Proplene

                             (C)                         (B)                         (P)

 

                       

 

            (2)       

                         

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