2026-04-14T04:47:42Zhttps://recercat.cat/oai/request
oai:recercat.cat:2445/132962025-12-04T20:48:35Zcom_2072_1057col_2072_478822col_2072_478917
RECERCAT author Wedekind, Jan author Hyvärinen, Antti-Pekka author Brus, David author Reguera, D. (David) 2010-07-05T10:27:07Z2010-07-05T10:27:07Z2008 The influence of the pressure of a chemically inert carrier gas on the nucleation rate is one of the biggest puzzles in the research of gas-liquid nucleation. Experiments can show a positive effect, a negative effect, or no effect at all. The same experiment may show both trends for the same substance depending on temperature, or for different substances at the same temperature. We show how this ambiguous effect naturally arises from the competition of two contributions: nonisothermal effects and pressure-volume work. Our model clarifies seemingly contradictory experimental results and quantifies the variation of the nucleation ability of a substance in the presence of an ambient gas. Our findings are corroborated by molecular dynamics simulations and might have important implications since nucleation in experiments, technical applications, and nature practically always occurs in the presence of an ambient gas. (c) American Physical Society, 2008 info:eu-repo/semantics/openAccess Nucleació Química física Nucleation Physical chemistry and chemical physics Unraveling the "pressure effect" in nucleation info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion