• Medientyp: E-Artikel
  • Titel: Homogeneous nucleation rate measurements in supersaturated water vapor
  • Beteiligte: Brus, David; Ždímal, Vladimír; Smolík, Jiří
  • Erschienen: AIP Publishing, 2008
  • Erschienen in: The Journal of Chemical Physics
  • Sprache: Englisch
  • DOI: 10.1063/1.3000629
  • ISSN: 0021-9606; 1089-7690
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  • Beschreibung: <jats:p>The rate of homogeneous nucleation in supersaturated vapors of water was studied experimentally using a thermal diffusion cloud chamber. Helium was used as a carrier gas. Our study covers a range of nucleation rates from 3×10−1to3×102cm−3s−1 at four isotherms: 290, 300, 310, and 320K. The molecular content of critical clusters was estimated from the slopes of experimental data. The measured isothermal dependencies of nucleation rate of water on saturation ratio were compared with the prediction of the classical theory of homogeneous nucleation, the empirical prediction of Wölk et al. [J. Chem. Phys. 117, 10 (2002)], the scaled model of Hale [Phys. Rev. A 33, 4156 (1986)], and the former nucleation onset data.</jats:p>