  The rate equation for an arbitrary mth order growth or decay reaction can be
expressed in terms of the q-exponential function, with q equal to m. The
analysis suggests that a wide variety of reaction rate (kinetic) processes and
models, in chemistry, biology/ecology, unit operations and contaminant
transport, are amenable to analysis by Tsallis' non-extensive statistical
mechanics. A number of q-analogues of common kinetic mathematical models are
proposed, and illustrated by several examples.
