ABSTRACT
In many respects, the formulation in Eq. (163) is more interesting than that in Eq. (162). Indeed, its left-hand side gives the instantaneous fraction of the reactant not converted to the product at any time 0. Chemically this is usually more significant than the actual concentration. Its right-hand side shown that this fraction depends on a single factor (or parameter) 2kC0e, which includes the effect of the a priori three independent factors: an intrinsic factor k and two experimental parameters c0 and 0. Just at a glance it shows that doubling the concentration, for example, results in the same effect as keeping the
*Note that when a figure C depends on several independent variables x and t, its variations vis-a-vis one of these variables are given by its partial derivative ac;ax with respect to the variable. When C depends on a single variable, the usual derivation is used: dC/dx. The intrinsic difference between the two kinds of derivations is indicated by the symbolic use of a or d in the derivative notations.
