10.12 Activity Coefficient and Fugacity Coefficient Approaches
Book navigation
- Chapter 1 - Basic concepts
- Chapter 2 - The energy balance
- Chapter 3 - Energy balances for composite systems.
- Chapter 4 - Entropy
- Chapter 5 - Thermodynamics of Processes
- Chapter 6 - Classical Thermodynamics - Generalization to any Fluid
- Chapter 7 - Engineering Equations of State for PVT Properties
- Chapter 8 - Departure functions
- Chapter 9 - Phase Equlibrium in a Pure Fluid
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Chapter 10 - Introduction to Multicomponent Systems
- 10.01 - Introduction to Phase Diagrams
- 10.02 - Vapor-Liquid Equilibrium (VLE) Calculations
- 10.03 - Binary VLE using Raoult's Law
- 10.04 - Multicomponent VLE & Raoult's Law Calculations
- 10.06 - Relating VLE to Distillation
- 10.07 - Nonideal Systems
- 10.08 - Concepts for Generalized Phase Equilibria
- 10.09 Mixture Properties for Ideal Gases
- 10.10 - Mixture Properties for Ideal Solutions
- 10.11 The Ideal Solution Approximation and Raoult's Law
- 10.12 Activity Coefficient and Fugacity Coefficient Approaches
- Chapter 11 - An Introduction to Activity Models
- Chapter 12 - Van der Waals Activity Models
- Chapter 13 - Local Composition Activity Models
- Chapter 14 - Liquid-liquid and solid-liquid equilibria
- Chapter 16 - Advanced Phase Diagrams
- Chapter 15 - Phase Equilibria in Mixtures by an Equation of State
- Chapter 17 - Reaction Equilibria
- Chapter 18 - Electrolyte Solutions
10.9 - 10.12 Mixture Properties Overview (6:53) (msu.edu)
10.9 - 10.12 Mixture Properties Overview (6:53) (msu.edu)
So, what do we do when Raoult's law fails? We use one of two approaches, activity coefficients or fugacity coefficients.
This screencast provides an overview of the most important results from sections 10.9-10.11 for perspective and motivation for improved models.