Abstract
IN chemical kinetics the effect of temperature on reaction rates is often evaluated in terms of the activation parameters E and A of the Arrhenius equation1,2 where k is an appropriate rate coefficient at the absolute temperature T, A is a constant related to the entropy of activation, E is the activation energy and R is the gas constant. In practice the numerical value of E is derived from the slope m of the graph log k versus l/T, and E = 2.303 Rm when common logarithms are used; log A is usually obtained by substituting the corresponding values of k, E and T in the logarithmic form of the equation.
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