Question: This is a multi-part problem requiring both computer based plotting and handwritten answers. Plot GMIX vs. XB for a Regular Solution (as defined in Ragone
This is a multi-part problem requiring both computer based plotting and handwritten answers.
Plot GMIX vs. XB for a Regular Solution (as defined in Ragone 7.11). Assume
= 8 kJ/mol. Plot curves for T= 300 to 600 K in 50 degree intervals, and from XB = 0.01 to 0.99 with intervals of approximately 0.05. (You will need to consult Ragone for the definitions of a Regular Solution and .)
From your results in part (i), construct a binary phase diagram (by hand) for the A-B system over the temperature range T= 300 to 600 K. Label the regions on the diagram.
At approximately what temperature does this particular Regular Solution begin to phase separate?
What thermodynamic property is equal to XaXb in the Regular Solution model?
Repeat steps (i) and (ii) for = 1 kJ/mol and for = 15 kJ/mol on fresh axes.
What would you expect if = -8 kJ/mol?
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