Estimate the pressure and composition for VLLE for the diethyl ether (1) + water (2) system at 35°C. Assume the liquid can be modeled by the 2-parameter Margules equation where A₁₂ = 4.62 and A₂₁ = 3.35 (Villamanan et al., 1984). If you treated the liquid as immiscible, how would your results change?

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Η Η IT Η | H-C-C-0-C-C-H Η Η Η | Η Η Di-ethyl ether