Coexistence curves separate parts of these diagrams. For 10 points each:
[10e] Name these planar diagrams in which curves demarcate discontinuous changes in physical properties on a plot of pressure versus temperature.
ANSWER: phase diagrams
[10m] Curves on phase diagrams where the second derivative of Gibbs free energy equals zero are named after this word. This is the first word in the name of a mechanism in which a single phase spontaneously separates into two.
ANSWER: spinodal [accept spinodal curve or spinodal decomposition]
[10h] This name is given to a region on a phase diagram where a mixture exists as two or more phases. When these regions are present in liquid states, spinodal decomposition occurs via oiling out.
ANSWER: miscibility gap
<Geoffrey Wu, Chemistry>