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Describing the Phase Equilibrium Line of Perfluorooctane, Based on the Clapeyron–Clausius Equation in the Range of Temperatures from the Triple Point to the Critical Point
AbstractA new model of the phase equilibrium line (PEL) of perfluorooctane (C 8 F 18 ) is developed on the basis of the Clapeyron–Clausius equation and...
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Application of the van’t Hoff equation to phase equilibria
van’t Hoff and Clausius–Clapeyron equations correspond to chemical and phase equilibria, respectively, but the Clausius–Clapeyron equation can be...
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Phase Equilibria
The topic of phase equilibria is broad. The projects included in this chapter illustrate several aspects of this topic. The relationship between the...
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Equation of State for Liquid and Gaseous Nitrogen in Cryogenic Temperature Range
AbstractBased on the previously developed simplified method for constructing the equation of state for liquid and vapor phases, the thermodynamically...
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The Calculation of Free-Energiesin Semiconductors: Defects, Transitionsand Phase Diagrams
In this chapter we review a series of novel techniques that make possible the efficient calculation of free energies in condensed-matter systems,...
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The Gibbs Free Energy
This chapter introduces the Gibbs free energyGibbs free energy and its relevance for the direction of phase changesPhase changes and reactions. The...
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Comprehensive Analytical Sorption Thermodynamic (CAST) model for water vapor sorption in cellulosic materials
Water vapor sorption is a fundamental property of cellulosic materials. Numerous theoretical and empirical models have been developed to describe the...
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Improved Esmaeilzadeh-Roshanfekr equation of state for ionic liquids
In this study, the densities of 27 pure components of ionic liquids (ILs) are analyzed using the Esmaeilzadeh-Roshanfekr (ER) equation of state and...
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Universal Equation of State for Critical and Supercritical Regions
AbstractA universal equation of state is constructed in the near-critical and supercritical regions. For this, the virial series is modified by...
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Renewed Measurements of Carbon Dioxide Hydrate Phase Equilibrium
This paper investigates the phase equilibrium conditions in the carbon dioxide hydrate forming system. Carbon dioxide hydrate can be utilized for...
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Moisture Sorption Isotherms of a Palm Heart and Prediction of its Shelf Life and Thermodynamic Properties on the Basis of these Isotherms
Experiments on determination of the sorption isotherms of the heart of a palm at different temperatures have been performed. Some mathematical...
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Humidity
This chapter focuses on the meaning and measurement of humidity. Mathematical equations for ideal gas mixtures are used to derive relationships...
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Fundamental Equation of State for Fluid Tetrahydrofuran
An empirical fundamental equation of state in terms of the Helmholtz energy for tetrahydrofuran is presented. In the validity range from the...
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Is the Size of a Small System a Thermodynamic Parameter?
AbstractA corollary of the molecular equilibrium theory of small systems is considered for the Clausius–Clapeyron equation with regard to...
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Real Gases and Vapors
Pure substances occur in the phases solid, liquid and gaseous. In phase transition, especially the two-phase liquid-vapor region is discussed, e.g....
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The Vapor–Liquid Phase Equilibrium Line for Water within the Framework of the Renormalization Group Theory
Abstract —The article proposes an equation system that includes functions describing the properties of H 2 O at the saturation line (pressure, vapor...
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Sublimation enthalpies of organic compounds by isothermal thermogravimetry
An improved method has been developed to determine the sublimation enthalpies of solid organic compounds using thermogravimetric analysis and...
