ISSN:
1432-2234
Schlagwort(e):
Activation energy
;
Boltzmann equation
;
Cross section
;
Gases
;
Reaction kinetics
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Chemie und Pharmazie
Notizen:
Abstract The rate ν of bimolecular chemical reaction A+A=B+C is analyzed for simple models of reactive cross sections. Collisions of particles colliding with energy E larger than a relatively low characteristic energy E Lare either non-reactive (reversed Prigogine-Xhrouet model = rPX) or the ability to react is decreasing for E〉E L(reversed line-of-centres model = rLC). After solution of the Boltzmann equation analytical expressions for the distribution function f and the rate coefficient k have been derived. It is shown that the Arrhenius activation energy E Ais small and even negative for sufficiently small E L. The non-equilibrium corrections to ν are small.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF00526651
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