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Utility of Simple Rate Equations for Solid State Reactions
Author(s) -
Maier Joachim
Publication year - 2005
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.200400424
Subject(s) - ansatz , simple (philosophy) , rate equation , statistical physics , kinetics , thermodynamics , kinetic energy , variety (cybernetics) , chemical reaction , chemical kinetics , point (geometry) , reaction rate , chemistry , physics , mathematics , classical mechanics , mathematical physics , catalysis , philosophy , statistics , biochemistry , geometry , epistemology
Abstract By considering a variety of examples with differing complexity and different deviations from equilibrium, the usefulness of simple chemical kinetics for describing solid state reactions is highlighted. In all cases point defects (or atomic constituents of higher dimensional defects) enter the kinetic equations. The formulation of the partial processes in terms of chemical kinetics is naturally beneficial for interfacial reactions far from equilibrium but also pure transport processes can be advantageously described by a kinetic ansatz. In view of existing or induced inhomogeneities, the formulation of the rate equations has to be strictly local.