Question: (20pts) A pure substance has two solid phase a,B and a normal melting point. The phase B stable at higher temperature is denser than the

  1. (20pts) A pure substance has two solid phase a,B and a normal melting point. The phase B stable at higher temperature is denser than the phase a stable at lower temperature. Please draw a schematic unary P - T phase diagram for this substance and plot a G-T diagram for all phases at 1 atm.

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