A nonsteady state chemical kinetic description of condensation
Abstract
A kinetic model of condensation has been developed that avoids most of the simplifying assumptions of steady state nucleation theory and that makes it possible to follow the evolution of condensation from its beginning. This model shows that the rate of condensation (defined to be the rate of consumption of monomers) rapidly decreases from a large initial value, passes through a minimum, and then increases slowly. The minimum rate is close to the steady state rate predicted by nucleation theory. Addition of large 'seed' clusters increases the rate of condensation, and the minimum rate is proportional to the concentration of seed clusters. The effectiveness of seed clusters increases with increasing size.
 Publication:

Rarefied Gas Dynamics
 Pub Date:
 1991
 Bibcode:
 1991rgd..proc.1274L
 Keywords:

 Condensation;
 Kinetic Equations;
 Reaction Kinetics;
 Steady State;
 Concentration (Composition);
 Dissociation;
 Monomers;
 Thermodynamics and Statistical Physics