| 초록 |
Heterogeneous nucleation rate of water vapor on smooth surfaces, e. g. an immiscible liquid surface was investigated. The nucleation and growth of condensate nuclei could occur both by the direct addition of molecules from the vapor and from those adsorbed on the substrate. The vapor-condensate-substrate interfacial force, the critical supersaturation, number of adsorbed molecules were different ways of expressing the affinity between vapor molecules and substrate surface. We found that adsorbed molecules were usually far more important to the nucleation process than those in the vapor phase. The heterogeneous nucleation rate of water vapor on some liquid surfaces was studied also. The critical supersaturation was measured differently with interfacial tension. There were a little bit differences between Volmer theory and experimental values.
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