5 Construct the temperature-composition diagram for ethane-n-heptane mixtures at 400 psia 20 using Figure 2.37 of your book by only taking the following compositions Mixture No 1 2 3 5 Weight percent of ethane: 100.00 70.22 50.25 29.91 0.00 Compte 300 Fig. 2-37. Phase diagrams of mixtures of ethano and n-heptane. (Reprinted with permission from Industrial and Engineering Chemistry 30, 461. Copyright 1938 American Chemical Society.)