Reaction kinetics, geospeedometry, and relaxation theory
نویسنده
چکیده
This paper explores the application of homogeneous reaction kinetics to geospeedometry and to structural relaxation theory. Numerical simulations of reaction kinetics during cooling for some firstand second-order elementary reactions have been carried out to systematically examine the effects of kinetic parameters and cooling histories on the final speciation. An analytical solution for a special case of first-order reaction A ~, B has also been obtained. On the basis of both the analytical solution and the numerical simulation, the cooling rate ( d T / d t ) at the apparent equilibrium temperature (Ta~, obtained by measuring 'quenched' speciation) and the relaxation time scale (~'r, the time for the departure from equilibrium to decrease to 1 /e of the initial departure) at T~ can be approximately related as follows:
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