Quasi-unary homogeneous nucleation of H2SO4‐H2O

摘要: We show that the binary homogeneous nucleation (BHN) of H2SO4-H2O can be treated as quasi-unary H2SO4 in equilibrium with H2O vapor. A scheme to calculate evaporation coefficient molecules from clusters is presented and a kinetic model simulate developed. In model, growth sulfuric acid various sizes are explicitly simulated. The does not have two well-recognized problems associated classical BHN theory (violation mass action law mismatch cluster distribution for monomers) appropriate situations where assumption invalid. rates predicted our consistent recent experimental experiments all cases studied, while most version systematically overpredicts rates. hydration clusters, which considered but accounted implicitly likely one physical mechanisms lead lower Further investigation needed understand exactly what cause difference between model.