Refer to the phase diagram for the distillation of an ideal mixture. Interpretation of the data on this phase diagram is explained in your textbook but can also be reviewed on page 101 of our laboratory manual.
Find the mole fraction of B in the liquid at 0.8 on the X-axis. What is the mole fraction of B in the vapor phase (on the vapor curve) above the liquid?
If the mole fraction of B in the liquid is 0.8, what is the composition of B in the vapor above the liquid?
What will be the reading on the thermometer at this point?