ChE 312 – Chemical Engineering Thermodynamics II

Spring Semester

 Catalog Data: ChE 312 Chemical Engineering Thermodynamics II. Credit 3.

Fluid mixtures and mixed phase systems, basic vapor-liquid equilibrium (VLE) followed by theory and application of solution thermodynamics, chemical reaction equilibrium; extension of phase equilibria to include liquid-liquid (LL), vapor-liquid-liquid (VLL), solid-liquid (SL), and solid-vapor (SV) systems.

 Prerequisites by topic:

basic thermodynamics ( ChE 311)

Textbook:   Introduction to Chemical Engineering Thermodynamics, 6^th edition, Smith, Van Ness, and Abbott, McGraw-Hill 2001 ( Chapters 10-15)

Course Objectives:

·        Understand the nature of equilibrium and the rules that give the number of independent variables required to determine equilibrium states.

·        Understand qualitatively and quantitatively, VLE and calculation of temperatures, pressures, and phase compositions using Raoult’s Law and Henry’s Law.

·        Understand the theoretical foundation for applications of thermodynamics to gas mixtures and liquid solutions.

·        Understand what thermodynamic properties can be determined experimentally.

·        Understand the effect of temperature, pressure, and initial composition on the equilibrium conversions of chemical reactions.

·        Develop a better understanding of VLE by examining extensions of Raoult’s Law and equations of state – two general calculational procedures for VLE.

·        Develop a general understanding of phase equilibria including discussion of liquid-liquid, vapor-liquid-liquid, solid-liquid, and solid-vapor systems.

Topics Covered: (classes are 75 minutes each)

·        General introduction to vapor/liquid equilibrium; phase rule, Duhem’s Theorem, models for vapor/liquid equilibrium (5 classes)

·        Theory of solution thermodynamics; chemical potential, partial properties, real-gas mixtures, fugacity, excess properties, ideal solutions (6 classes)

·        Liquid-phase properties from VLE data, models for excess Gibbs energy, property changes of mixing (2 classes)

·        Chemical reaction equilibria; application of equilibrium criteria to reactions, Gibbs energy and the equilibrium constant, effect of temperature on the equilibrium constant, relation of the equilibrium constants to composition (6 classes)

·        Additional topics in phase equilibria; VLE from cubic equations of state, LLE, VLLE, SLE, and SVE (6 classes)

·        Tests (3 classes)

Computer Usage:  used for solving homework problems 

Laboratory Projects:  none

Evaluation:  three in-class examinations, 12 homework problem sets, final exam

Estimated ABET category content:

Basic Science  1 credit

Engineering Science 2 credits

Contribution of course to meeting professional component:

Provides thermodynamics foundation unique to chemical engineering;  solution thermodynamics, chemical reaction equilibrium and phase equilibria.

Relationship of course to program objectives:

Helps fulfill Program Outcomes 1, 3, and 9