A T-P phase diagram for a unary system (pure A) is given here, and it shows four phases. Construct a reasonable T vs. μ (Temperature Chemical potential) property diagram at P₁. It should show all the stable and metastable two-phase equilibria at Pı. Hint: The T values for all the two-phase equilibria at P, are easily found by extrapolation. Approximate all the T-Hд lines by straight lines, intersecting at the two-phase equilibria. T α 8 Y B P₁ P