Water and 1-butanol are partially miscible in each other. At 1atm, the two-phase system boils at 93.0C and the composition of 1-butanol in the three phases (in mole \%) is The boiling point of pure 1-butanol at 1atm is 117.7C. (a) (5 points) Sketch the Txy diagram for this system. (b) (10 points) A solution is formed by mixing 5 moles of water with 2 moles of 1-butanol at 50C. Assuming the miscibility of the two compounds is the same at 50C as it is at 93C, how many phases are formed? If more than one, indicate the composition and amount of each phase. (c) (5 points) If the mixture in (b) is brought to boiling, which liquid phase will disappear first? (d) ( 10 points) It is desired to convert the mixture in (b) into a single-phase solution and there are two ways to do this. Calculate the minimum amounts of species to produce a single-phase solution for both cases