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Chemical Kinetics 11                                      133
       exponential factor, or Arrhenius parameter A can be derived from the
       intercept, c, of the graph, i.e. c  = In A.

                          Eat  1
                 Ink  =  --  - +  1nA  Arrhenius equation
                           RT
                  Y  =   m     x+c























                                        ID' (K-3

       Figure 9.3  Plot of In k versus ZIT for the Arrhenius equation



        WORKING METHOD FOR THE SOLUTION OF GRAPHICAL
                         PROBLEMS IN KINETICS

           1.  Read the question carefully.
          2.  Identify the tabulated data given-tables  of data suggest that a
             graph needs to be plotted. Remember, this may not be specified
             in the problem.
          3.  Convert all units to the SI system, i.e. T should be expressed in
             K and Eact in J mol- ' (or kJ mol-  ').
          4.  Having identified the data, try to establish a linear correlation
             between the two sets of data-remember  it is not simply a case
             of plotting one set of data points on the x-axis and one set on
             the y-axis. Identify the linear equation in question:
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