It is required to design a separation process by distillation of an effluent containing Ethanol(1)/ water(2) at 25 bar from a fermentation process. If for the mixture, both the liquid phase and the vapor phase in equilibrium are not considered ideal. Mark the equilibrium model that you will use to explain the behavior of the mixture: o Henry's law o Raoult's law - Modified Raoult's law. o Gamma-phi If the mixture contains 45% water, and it will evaporate in one stage: a) Determine the temperature above which the mixture is completely vapor. b) The composition of the last drop of liquid that evaporates. The activity coefficients are defined by the Margules model: ln(1)=(A12+2(A21A12)x1)x22ln(2)=(A21+2(A12A21)x2)x12 The parameters for the mix are A12=1.6432yA21=0.6923x1=x2=T=C