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The Pressure-Effect in Unary Condensation
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SYSNO ASEP 0332912 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title The Pressure-Effect in Unary Condensation Title Vliv tlaku v jednofázové kondenzaci Author(s) Wedekind, J. (ES)
Hyvärinen, A-P. (FI)
Brus, David (UCHP-M) RID, SAI, ORCID
Reguera, D. (ES)Source Title Book of Abstracts. - Prague : Orgit, 2009 / Smolík J. ; O'Dowd C. - ISBN 978-80-02-12161-2 Pages s. 607-610 Number of pages 4 s. Action International Conference Nucleation and Atmospheric Aerosols /18./ Event date 10.08.2009-14.08.2009 VEvent location Prague Country CZ - Czech Republic Event type WRD Language eng - English Country CZ - Czech Republic Keywords homogeneous vapor-liquid nucleation ; pressure-effect ; molecular dynamics Subject RIV CF - Physical ; Theoretical Chemistry CEZ AV0Z40720504 - UCHP-M (2005-2011) Annotation The pressure-efect of a chemically inert carrier-gas on the nucleation rate is one of the biggest puzzles in the research of gas-liquid nucleation. Different experiments may show a positive effect a negative effect, or no effect at all, at the same experiment can show both trends for the same substance depending on temperature or for different substances at the same temperature. We show how this ambiguous pressure effect naturally arises from the competition of nonisothermal effects and pressure volume work. We are able to apparently contradictory experimental results and quantify the variation of the nucleation ability in the presence of an ambient gas. Molecular dynamics simulations confirm these predictions very well. Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2010
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