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Title: Vapor pressure and heat of vaporization of molecules that associate in the gas phase
Authors: Slavchov, Radomir I.
Novev, Javor K.
Mosbach, Sebastian
Kraft, Markus
Keywords: Clausius-Clapeyron Equation
DRNTU::Engineering::Chemical engineering
Vapor Pressure
Issue Date: 2018
Source: Slavchov, R. I., Novev, J. K., Mosbach, S., & Kraft, M. (2018). Vapor Pressure and Heat of Vaporization of Molecules That Associate in the Gas Phase. Industrial & Engineering Chemistry Research, 57(16), 5722-5731. doi:10.1021/acs.iecr.7b04241
Series/Report no.: Industrial & Engineering Chemistry Research
Abstract: A model of the temperature dependence of the vapor pressure and the heat of vaporization of liquids whose vapors contain associates is presented for two cases: dimers and linear associates in the gas phase. The results are analytic generalizations of the Clausius–Clapeyron equation, valid with accuracy of 0.1%–1%, as demonstrated with 11 liquids: formic and acetic acids, methanol, ethanol, n-propanol, n-butanol, water, benzene, toluene, heptane, and isooctane. The model involves only readily available handbook parameters: the room-temperature heat of vaporization, vapor pressure, heat capacities, second virial coefficient, and heat of dissociation of the dimers in the gas phase.
ISSN: 0888-5885
DOI: 10.1021/acs.iecr.7b04241
Rights: © 2018 American Chemical Society. This document is the Accepted Manuscript version of a Published Work that appeared in final form in Industrial & Engineering Chemistry Research, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SCBE Journal Articles

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