
459Application of Green Catalysis and Processes
rst-order step) and 0.006 h
−1
(slow rst-order step) for 343 K, 0.726 h
−1
(fast rst-order step)
and 0.065 h
−1
(slow rst-order step) for 353 K and 0.902 h
−1
(fast rst-order step) and 0.068 h
−1
(slow rst-order step) for 363 K, respectively.
From the data, it can be seen that the rate constant increases with temperature for both
the steps. An increase of rate constant with temperature for the rst step is smaller than
that of the second step (Figure 6.15).
Arrhenius plot: The activation energy and frequency factor are determined by Arrhenius
equation.
k = k
0
exp (−E/RT) (6.7)
A plot of ln k versus ...