1. The figure below shows a Px diagram for a binary system at 480 K. Black dots show data points from a series of constant mass expansion for several mixtures. Based on this diagram, answer the following:

a) What is the bubble point pressure (kPa) or 30% component 1 and 70% component 2?

b) At the bubble point in Part a, a vapor pressure phase is about to appear. In the figure below, clearly indicate the tie line that connects the liquid phase and the incipient vapor phase at the bubble point. Use a ruler to make your tie line precisely satisfy thermodynamic conditions.

c. Is the critical temperature of component 2 higher than 480 K? Why or why not?

Thank you!!