The following temperature/composition data were obtained for a mixture of octane (O) and methylbenzene (M) at 1.00 atm, where X is the mol fraction in the liquid and Y the mole fraction in the vapor at equilibrium. 6/ °C 110.9 112.0 114.0 115.8 117.3 119.0 121.1 123.0 Хм 0.908 0.795 0.615 0.527 0.408 0.300 0.203 0.097 YM 0.923 0.836 0.698 0.624 0.527 0.410 0.297 0.164 The boiling points are 110.6°C and 125.6°C for M and O, respectively. Plot the temperature/composition diagram for the mixture. (Do this on paper. Your instructor may ask you to turn in this work.) What is the composition of the vapor in equilibrium with the liquid of the following composition? (a) XM = 0.250 YM = (b) Xo = 0.250 YM =