Package FLUIDS. Part 3: correlations between equations of state, thermodynamics and fluid inclusions

Authors

  • R. J. BAKKER

    1. Department of Applied Geosciences and Geophysics, Mineralogy and Petrology, University of Leoben, Peter-Tunner-Str. 5, A-8700 Leoben, Austria
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  • 1

    Intensive parameters are independent of the mass, size or shape of a phase.

Ronald J. Bakker, Department of Applied Geosciences and Geophysics, Mineralogy and Petrology, University of Leoben, Peter-Tunner-Str. 5, A-8700 Leoben, Austria.
Email: ronald.bakker@mu-leoben.at. Tel: 00 43 3842 4026200. Fax: 00 43 3842 47016.

Abstract

The computer package FLUIDS (Bakker 2003) has been revised to calculate fluid properties in pores and inclusions. The programs are provided with a Graphical User Interface (GUI) and are adapted to new operating systems, including MacOS, Windows and Linux. The van der Waals equation of state has been added to the group Loners and is used to illustrate a large variety of calculation procedures for many thermodynamic parameters and properties. The mathematical transformations can be applied to any equation of state with the form p(V,T,n), i.e. the pressure of a multi-component fluid is expressed as a function of volume, temperature and amount of substance. The fluid properties that are usually observed in microthermometric analyses of fluid inclusions, such as phase separation, phase coexistence and stability, can be predicted with these equations of state by using its spinodal and critical point calculations, in addition to fugacity calculations of liquid and vapour phases. The computer program LonerW can be freely downloaded from the website: http://fluids.unileoben.ac.at/Computer.html.

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