- #1
Sebastian
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Homework Statement
Calcium carbonate ([itex]\mathrm{CaCO_3}[/itex]) has two common crystal forms: Calcite and Aragonite. In room temperature and atmospheric pressure, the Calcite has Gibbs energy -1128.8 kJ/mol, volume 36.93 cm^3/mol and entropy 92.9 J/K/mol, and the Aragonite has Gibbs energy -1127.8 kJ/mol, volume 34.14 cm^3/mol and entropy 88.7 J/K/mol. Under these conditions, which is the stable phase, and under what pressure in room temperature will the second phase be more stable?
Homework Equations
We study with "Thermal Physics" by Kittel.
The Attempt at a Solution
I don't even know how to start. Any help will be appreciated. Thanks!