CHAPTER 12 EQUILIBRIUM CONDITIONS IN MULTICOMPONENT SYSTEMS
12.2 SOLVENTCHEMICALPOTENTIALS FROMPHASEEQUILIBRIA 371
b
b
b
b
b
a
b
c
d
e
Tf Tf T^0
T
=TA
solid
liquid
solution
slopeD H
A(s)
T^2
slopeD H
A(l)
T^2
slopeD HAT(sln) 2
Figure 12.1 Integration path abcde at constant pressure for determiningA A
at temperatureT^0 from the freezing pointTfof a solution (schematic). The dashed
extensions of the curves represent unstable states.
slope d.A=T /=dToverTalong the path abcde:
A.l; T^0 /
T^0