Using the phase diagram given, indicate whether the statements below are true (T

Question

Using the phase diagram given, indicate whether the statements below are true (T) or false (F). At the temperature and pressure of point 2, substance Z exists as a three-phase equilibrium system. At the temperature and pressure of point 3, substance Z exists as a one-phase gaseous system. If the Z(s) = Z(I) = Z( g) system is maintained at the temperature of point 2 while pressure is decreased, more Z will vaporize. If liquid Z is maintained at the pressure of point 4 while the temperature is decreased to 30 degree C, the liquid will vaporize. The existence of liquid Z at -50 degree C and 2 atm represents the metastable condition of "supercooling."

Explanation / Answer

a) T

b) T

c) T

d) F

e) T

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