Figure 5.2 shows the phase diagram for two partially miscible liquids, which can be taken to be

Question:

Figure 5.2 shows the phase diagram for two partially miscible liquids, which can be taken to be that for water (A) and 2-methyl-1-propanol (B). Describe what will be observed when a mixture of composition x_B =0.8 is heated, at each stage giving the number, composition, and relative amounts of the phases present.

Data in Figure 5.2