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Problem 109

# Kyanite, sillimanite, and andalusite all have the formula $\mathrm{Al}_{2} \mathrm{SiO}_{5}$. Each is stable under different conditions (see the graph at right). At the point where the three phases intersect:(a) Which mineral, if any, has the lowest free energy?(b) Which mineral, if any, has the lowest enthalpy?(c) Which mineral, if any, has the highest entropy?(d) Which mineral, if any, has the lowest density?

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## Video Transcript

answer for party multi point in crazies with degrees sighs and melting point in crazies. Increases week increased charge. So, anise, you'll have the high here multi point because you trace a smaller I'm size and unser for part B melting point in crazies with degrees size and multi point in Greece. Ingres, ease with decrease charge. So here, Cooper have the higher melting point because it is a smaller size. I mean, answer for Farsi. Melting point increases with degrees size and melting point increases with increase charge. So here, M G o here. Hi. You're melting point because you notice a greater church plus two.

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