MSE 308 Problem Set 12 - MSE 308 Thermodynamics of...

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MSE 308 Dept. of Materials Science & Engineering Thermodynamics of Materials Spring 2005/Bill Knowlton Problem Set 12 1. For a regular solution, it is known for a two component system, that: 12 1 1 2 2 (l n l n) mix o Ga X XR T XXXX ∆= + + (J/mole). Consider a system in which a o is -13,500 J/mole. a. Derive . xs mix G b. Derive 1 xs G . c. Derive 2 xs G . d. Derive the activity coefficient for component 1. e. Derive the activity coefficient for component 2. f. Plot the activity coefficient for component 1 as a function of X 2 over a temperature range from 300K to 1000K on one graph using a mathematical program that is not Excel. g. Plot the activity coefficient for component 2 as a function of X 2 over a temperature range from 300K to 1000K on one graph using a mathematical program that is not Excel. h. Plot as a function of X mix G 2 over a temperature range from 300K to 1000K on one graph using a mathematical program that is not Excel.
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