14. The phase diagram of a hypothetical substance is shown below. (a) Estimate the normal boiling point of the substance. (b) Estimate the normal freezing point of the substance. (c) What is the physical state of the substance under T = 1250 K, P = 0.2 atm? (d) What is the physical state of the substance under T = 100 K, P = 0.8 atm? (e) What is the temperature and pressure of the substance at the triple point? (10pts)