In developing a new fractionation process in recovering biofuels products it is important to separate acetone and water. The engineers know that under atmospheric pressure water boils up at $100$ degrees C and acetone boils up at $56$ degree C$.$ The significant difference in temperature is very encouraging but the polar nature of both components generates fears for the presence of an azeotrope. They found in the literature experimental data for the T$-*-$y diagram of the acetone$-$water system that appears next. Looking at the T$-$ey diagram and the table of thermophysica propertietone ase answer to the following questions: