(a) Using the plots in Figures 9.11 and 9.12 as a guide, develop an expression in which the enthalpy of vaporization ∆hvap for azeotropes in methyl acetatemethanol mixtures is related to the enthalpy...

(a) Using the plots in Figures 9.11 and 9.12 as a guide, develop an expression in which the enthalpy of vaporization ∆hvap for azeotropes in methyl acetatemethanol mixtures is related to the enthalpy of vaporization for azeotropes in acetone-chloroform mixtures. (b) Compare values of ∆hvap for the azeotropes to those of the pure components in Figure 9.12. Conclusion?