Below is a plot of the natural log of the activity coeffi cients ( ln i) a

Question:

Below is a plot of the natural log of the activity coeffi cients ( ln γi) a binary liquid mixture of species a and b vs. mole fraction of species a (xa) at 300 K.

(a) What is the reference state for each species (Lewis-Randall or Henry’s)?

(b) Show that the Gibbs–Duhem equation is satisfi ed at a mole fraction xa = 0.6.

(c) Come up with an appropriate model for gE for this system and fi nd the values of the model parameters.

(d) Is it possible for species a and b to separate into two liquid phases? Explain. image text in transcribed

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Engineering And Chemical Thermodynamics

ISBN: 9780470259610

2nd Edition

Authors: Milo D. Koretsky

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Question Posted: Feb 27, 2024 03:08 AM

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Below is a plot of the natural log of the activity coeffi cients ( ln i) a

Question:

-0.5 hul -1 -1.5 -2 -2.5 In Yal 0.2 0.4 Xa 0.6 T=300 K In Yb 0.8 1

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