This volume presents a sound foundation for understanding abstract concepts (physical properties such as fugacity, or chemical processes, such as distillation) of phase and reaction equilibria, and shows you how to apply these concepts to solve practical problems using numerous, clear examples. The book encourages the use of MATHCAD to write programs specific to each problem, enabling you to easily track mistakes and understand the order of magnitude of the various quantities involved. Provides guidelines in order to choose the 'best' equation of state suitable for the particular situation Includes up-to-date information, comprehensive in-depth content and current examples in each chapter Provides the right tools in order to and encourages you to use MATHCAD to write your own specific programs Includes many well organized problems (with solutions), which are extensions of the examples enabling conceptual understanding to quantitative/real problem solving Includes all mathematical background required for solving problems encountered in phase and reaction equilibria Provides a Solutions Manual (for instructors in pdf form) allowing the use of the book in advanced thermodynamic courses