Online Courseware - Dr Zargarzadeh

Phase Equilibrium Thermodynamics
Instructor: Leila Zargarzadeh
Level: Undergraduate
Course objectives
This course introduces methods to express properties of real fluids and mixtures, phase equilibria, chemical reaction equilibria, and some of their applications.Chemical processes include chemical reactions to form a desired product(s), and separation units to get a desired purity. Majority of separations depend on the coexistence of phases and different distribution of components between the phases. Therefore, phase equilibria and chemical reaction equilibria are very important topics in chemical engineering and will be covered in this course.

Upon successful completion of this course,
students will learn how to
  1. apply the concepts of chemical potential, fugacity, and activity coefficient
  2. choose the appropriate models to describe phase equilibria
  3. perform bubble point, dew point, and flash calculations
  4. find the equilibrium mole fractions in a system with reactions

Lecture slides
Chapter 6 Lecture 1 Course introduction
Review of Chemical Engineering Thermodynamics
Lecture 2 Chapter 6
Introduction to phase equilibrium
Pure species phase equilibrium, Clapeyron eq, Clausius-Clapeyron eq
(6.1 and 6.2)
Lecture 3 Thermodynamics of mixtures
Partial molar properties and physical explanation
Gibbs-Duhem eq
(6.3 of Koretsky, pages 334-340)
Lecture 4 Property changes of mixing
Partial molar property determination
(6.3 of Koretsky, pages 343-366)
Lecture 5
Chapter 7 Lecture 6 Fugacity definition
Chemical equilibrium in terms of fugacity
(7.2 and 7.3 of Koretsky pages 391-396)
Lecture 7 Fugacity and fugacity coefficient of pure gases
(7.2 and 7.3 of Koretsky pages 396-402)
Lecture 8 Fugacity and fugacity coefficient of species  in a gas mixture
(7.3 of Koretsky pages 403-412)
Lecture 9 Fugacity in the liquid phase
  Reference states for the liquid phase: Lewis/Randall vs. Henry’s
  The activity coefficient
(7.4 of Koretsky, pages 413-417)
Lecture 10
Lecture 11
Lecture 12
Lecture 13

Curve fitting example_excel file
Lecture 14
Chapter 8 Lecture 15 Vapor-liquid equilibrium
    Raoult’s law
    Bubble point and dew point calculations
(8.1 of Koretsky, pages 466-471)
Lecture 16 Vapor-liquid equilibrium
    Flash calculation
     VLE phase diagram for binary systems
     VLE with nonideal liquid and ideal gas phases
(8.1 of Koretsky, pages 471-477)
Lecture 17 Vapor-liquid equilibrium
     VLE phase diagram for binary systems
     Fitting gamma model with VLE data  
     VLE with nonideal liquid, continue
(8.1 of Koretsky, pages 477-483)
Lecture 18 Vapor-liquid equilibrium
    Fitting activity coefficient models with VLE data
    Solubility of gases in liquids
(8.1 of Koretsky, pages 484-501)
Lecture 19 Vapor-liquid equilibrium
    VLE using the equations of state method for the liquid phase
(8.1 of Koretsky, pages 501-511)
Lecture 20 Liquid–Liquid equilibrium (LLE)
Vapor-liquid-liquid equilibrium (VLLE)
(8.2 and 8.3 of Koretsky, pages 511-523)
Lecture 21 Solid–Liquid equilibrium (SLE)
Solid-solid equilibrium
(8.4 of Koretsky, pages 523-531)
Lecture 22 Colligative properties
    Boiling point elevation
    Freezing point depression
    Osmotic pressure
(8.5 of Koretsky, pages 531-538)
Chapter 9 Lecture 23 Equilibrium for a single reaction
Equilibrium constant from thermodynamic data
(9.1 to 9.4 of Koretsky, pages 562-578)
Lecture 24 Relation between the equilibrium constant and
the concentrations of species in a gas-phase reaction
(9.5 of Koretsky, pages 579-586)
Lecture 25 Relation between the equilibrium constant and the concentrations of species
    * in a liquid-phase reaction (or a solid-phase reaction)
    * in a heterogeneous reaction
(9.5 of Koretsky, pages 586-589)
Lecture 26 Multiple reactions
* Extent of reaction and the equilibrium constant for multiple reactions
* Gibbs phase rule for reacting systems  
(9.7 of Koretsky, pages 599-602)
Lecture 27 Multiple reactions, examples
(9.7 of Koretsky, pages 602-610)
Lecture 28
Equilibrium in electrochemical systems
(9.6 of Koretsky, pages 602-610)
  Summary of
Chapters 6 and 7