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  • 1 Thermosis Ltd. P.O. Box 187 Sfantu Gheorghe 4000 Romania P.O. Box 187 Sfantu Gheorghe 4000 Romania
  • 2 LACECA Research Centre Str. Siret nr. 95 78308 Bucharest Romania Str. Siret nr. 95 78308 Bucharest Romania
  • 3 University of Bucharest Department of Physical Chemistry, Faculty of Chemistry Bd. Elisabeta 4-12 Bucharest Romania Bd. Elisabeta 4-12 Bucharest Romania
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Abstract  

The authors continue their considerations concerning the validity of the steady-state approximation in non-isothermal kinetics. A sequence of two first-order consecutive reactions with an active intermediate was subjected to kinetic analysis by numerical solution of the corresponding differential kinetic equations for a number of particular cases. The results demonstrated that the rate of change of concentration of the active intermediate is negligibly small if the assumption made in the isothermal case is also accepted for the non-isothermal case, i.e. k2(T(t))>> k1(T(t)).