Asingle-stage liquid/vapor separation for the benzene i vethylbenzene(2) system must produce phases of the following equilibrium compositions. for one of these sets, deter- mine the t and p in the separator. what additional information is needed to compute the relative amounts of liquid and vapor leaving the separator? assume that raoult's law applies. (a) 1] = 0.35. yı = 0.70. (b) ej = 0.35. y1 = 0.725. (e) x1 = 0.35, y = 0.75. (d) a=0.35. n = 0.775.