The simulation and optimization of processes assumes that the thermodynamic properties and phase equilibria of the mixtures concerned are well known. This knowledge is still based upon experimentation, but it is also the result of calculation methods based on the principles of thermodynamics that govern them, insure their coherence, and confer upon them a wide range of application. This text is concerned primarily with the description of these methods and their evolution. It devotes extensive space to fundamental concepts and places particular emphasis on the "models" that, although based on simplified concepts of the subject matter at the molecular level, have "predictive" character. Computational examples are used to explain the application of these concepts and models.Content:Front Matter Symbols Preface Table of Contents1. Principles Thermodynamic Functions the Ideal Gas2. Properties of Pure Substances3. Predicting Thermodynamic Properties of Pure Substances General Principles Corresponding States Group Contributions4. Equations of State5. Characterization of Mixtures6. Mixtures: Liquid-Vapor Equilibria7. Deviations from Ideality in the Liquid Phase8. Application of Equations of State to Mixtures Calculation of Liquid-Vapor Equilibria under Pressure9. Liquid-Liquid and Liquid-Liquid-Vapor Equilibria10. Fluid-Solid Equilibria Crystallization - Hydrates11. Polymer Solutions and Alloys12. Multicomponent Mixtures13. Chemical ReactionsAppendicesIndex