Phases of Matter

Q. A block of ice at $-{12}^{\circ }\text{C}$ is slowly heated and converted into steam at ${100}^{\circ }\text{C}$. Which of the following curves best represents this event?

1. 
2. 
3. 
4. 

Q. Phase equilibrium of matter means that the matter can exist in two different phases for given temperature and pressure.

1. False
2. True