P→ T→ ||| ။ Figure 7.19 Schematic pressure-temperature phase diagram for a one-component system in the vicinity of its triple point. All phases are solids. 7.10* Three allotropes a,ẞ, and y of a certain element are in equilibrium at its triple point (Figure 7.19). It is known that V > V and S<S Determine which regions of the diagram are aẞ, and y. Explain your reasoning.