The continuous stirred tank reactor system described in Part I was used to measure the growth of aerosol salt particles containing manganese in an SO 2-containing atmosphere. A model of the aerosol behavior within the reactor was used to predict the reactor effluent size distribution given the input feed distribution and various reaction rate expressions. Comparing the reactor aerosol size distributions predicted by the various rate expressions to those experimentally measured provides a method to assess the compatibility of heterogeneous reaction rate theories and measurements made under realistic atmospheric conditions.