1-propanol and 2-propanol form an ideal solution at all concentrations at 25 C. Letting the subscript 1 and 2 denote the 1- and 2- propanol, respectively, and given P1* = 20.9 torr and P2* =45.2 torr at 25 C, calculate the mole fraction of 2-propanol in the vapor phase (y2) as a function of the mole fraction of 2- propanol in the liquid phase (x2). Plot y2 versus x2 for 0 < x2 < 1 (for plotting, increment x2 in steps or 0.05)