The effect of coalescence in certain collision processes
This note is concerned with the variable size-distributions of atmospheric and colloidal particles. The following physical model is adopted: a large number of particles are randomly distributed in space; these particles are in random motion due to e.g. Brownian effect or turbulence; the system of particles is given by the particle-mass distribution. The distribution varies as a result of collision processes in which the randomly moving particles meet and coalesce. The particles do not break up and do not enter or leave the system under consideration. It is assumed that the total number of particles is large enough to justify the use of