The physico-geometric kinetics for the solid-state reactions by thermoanalytical (TA) measurements were reexamined by focusing
some fundamental aspects: (1) the fundamental kinetic equation, (2) the kinetic model function, (3) the fractional reaction
α, and (4) the apparent kinetic parameters. It was pointed out that some pitfalls in the practical kinetic study are originated
by the disagreement between the kinetic information from the TA measurements and the theory of the physico-geometric kinetics.
In order to increase the degree of coordination between the theory and practice, several attempts were made from both the
theoretical and experimental points of views. The significance of the apparent kinetic parameters was discussed with a possible
orientation for obtaining the reliable kinetic parameters.