Computing Liquid-Vapor Phase Diagrams for Non-ideal Binary Mixtures©
Franklin M.C. Chen
Department of Chemistry
University of Wisconsin-Green Bay
Green Bay, WI 54311-7001
United States
mail to: chenf@uwgb.edu

This Mathcad worksheet is intended to help students learn about determining vapor-liquid phase diagrams for ideal and non-ideal binary mixtures. Seventeen exercises were given to guide the students to grasp thermodynamic concepts of activity and activity coefficients. Van Laar theory was used to calculate solvent and solute's activity coefficients which in turn determine boiling temperature as a function of mixture compositions using the Leavenberg-Marquardt algorithm.
Editor's Commentary
Audiences: Upper-Division Undergraduate
Pedagogies: Computer-Based Learning
Domains: Physical Chemistry
Topics: Mathematics / Symbolic Mathematics, Phases / Phase Transitions / Diagrams, Thermodynamics
File NameDescriptionSoftware TypeSoftware Version
VaporPressure.mcd JCE Computational Document. Requires Mathcad 2001i or higher. Mathcad 2001i
VaporPressure.pdf Read-Only Document
JCE JCE Subscribers only: name and password or institutional IP number access required.
Chen, F. M. C. J. Chem. Educ. 2005, 82, 1100
Comments to: Chen, Franklin
©Copyright 2005 Journal of Chemical Education