ESC.1la) The following temperature-composition data were obtained for a mixture of octane (O) and methylbenzene (M) at 1.00 atm, where x is the mole fraction in the liquid and y

the mole fraction in the vapour at equilibrium. The boiling points are 110.6°C and 125.6 °C for M and O, respectively. Plot the temperature-composition diagram for the mixture. What is the composition of the vapour in equilibrium with the liquid of composition (i) x,, = 0.250 and(ii) x, = 0.250?

Fig: 1

Fig: 2

Fig: 3