Assign the appropriate labels to the phase diagram shown below.
A)A = liquid,B = solid,C = gas,D = critical point
B)A = gas,B = solid,C = liquid,D = triple point
C)A = gas,B = liquid,C = solid,D = critical point
D)A = solid,B = gas,C = liquid,D = supercritical fluid
E)A = liquid,B = gas,C = solid,D = triple point

Question

Assign the appropriate labels to the phase diagram shown below. 
A)A = liquid,B = solid,C = gas,D = critical point 
B)A = gas,B = solid,C = liquid,D = triple point 
C)A = gas,B = liquid,C = solid,D = critical point 
D)A = solid,B = gas,C = liquid,D = supercritical fluid 
E)A = liquid,B = gas,C = solid,D = triple point

Quizplus · Accepted Answer

This phase diagram shows the relationship between the three phases of matter (solid, liquid, and gas) at different temperatures and pressures. The point where all three phases can coexist is called the triple point (labeled B). The point where the substance transitions from a liquid to a gas is the boiling point, and the point where it transitions from a solid to a gas is the sublimation point. The critical point (labeled D) is the temperature and pressure at which the substance transitions from a liquid to a supercritical fluid. Therefore, the best choice is B because it correctly labels the triple point, solid and gas phases, and the liquid and gas phases.

Assign the Appropriate Labels to the Phase Diagram Shown Below