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CHAPTER NINE. SPECIALIZED PHASE BEHAVIOR IN MIXTURES

Published

Author(s)

Vladimir Diky, Rich Elliott

Abstract

Vapor liquid equilibrium (VLE) in mixtures is strongly influenced by the vapor pressures of the pure components, especially when one compound is highly concentrated. This means that the bubble pressure is relatively insensitive to infinite dilution activity coefficients. For LLE (LLE) and solid-liquid equilibria (SLE), however, the vapor pressures play an insignificant role, and the mixtures are dilute in a majority of cases. Since activity models and equations of state are imperfect in their characterizations of fugacity, accuracy in the midrange of compositions is no guarantee of accuracy for dilute components. Therefore, we focus this chapter on infinite dilution activity coefficients, LLE, and SLE prepared for the possibility that findings in these applications may not entirely coincide with findings for VLE, although the thermodynamic constraints and model equations are the same.
Citation
Properties of Gases and Liquids
Publisher Info
McGraw-Hill, New York, NY

Keywords

liquid-liquid equilibria, solid-liquid equilibria, activity coefficients, equations of state

Citation

Diky, V. and Elliott, R. (2023), CHAPTER NINE. SPECIALIZED PHASE BEHAVIOR IN MIXTURES, McGraw-Hill, New York, NY, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=934436 (Accessed June 16, 2024)

Issues

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Created February 7, 2023, Updated February 16, 2023