10.19. A Kauzmann point is defined as a location in (T,P) space where the entropy difference between two phases equals zero. Figure 10.11 gives a schematic phase diagram of the isotope 3He. (a) Indicate any Kauzmann points on this diagram. (b) In general for any substance, consider the locus of all points in the (T,P) plane for which S=0 between two phases. This will form a line that extends Figure 10.11. A schematic illustration of the solid-liquid phase diagram of the isotope 3He [adapted from Stillinger, Debenedetti, and Truskett, J. Phys. Chem. B 109, 11809 (2001)]. into the metastable regions of the two phases. What is the slope of this line, (dP/dT)S=0, in measurable quantities