Van Laar equation to calculate activity coefficients
This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!
How do I use the Van Laar equation to calculate an activity coefficient for an equilibrium ethanol/water binary system with mole fractions of ethanol in liquid of: 0, 0.05, 0.1, 0.15, 0.2, 0.4, 0.6, 0.8, and 1? I'm looking at the Van Laar equation in Perry's Handbook where A12 is 1.6798 and A21 is 0.9227. I don't understand what these variables are, and I don't understand if ln of gamma 1 and ln of gamma 2 represent the vapor part and liquid part respectively (or vice versa) or if they represent the ethanol and water respectively (or vice versa). I want to make sure I know what x1 and x2 represent also. Thanks very much.© BrainMass Inc. brainmass.com June 7, 2023, 2:20 pm ad1c9bdddf
This solution helps with a molecular engineering problem.
Free BrainMass Quizzes
This quiz is intended to test the basics of History of Architecture- foundation for all architectural courses.
Air Pollution Control - Environmental Science
Working principle of ESP