Lec 27: Distillation in non-ideal systems and concept of enthalpy-concentration diagram

The lecture covers distillation in non-ideal systems, focusing on azeotropes and enthalpy-concentration diagrams. It discusses deviations from ideality, positive and negative deviations, and their implications for distillation design. The importance of enthalpy in vapor-liquid equilibria is emphasized, along with methods for constructing diagrams that relate enthalpy to concentration.