Complete the statements by writing the number from the graph.
Temperature vs. Time
The substance is in the gas phase only in region
The substance is in both the liquid and the solid
phase in region )
Temperature (°C)
13
400
360
320
280
240
200
160
120
80
40
0
-40
-80
The substance is in only the liquid phase in region
The melting point is the temperature at region
N
The boiling point is the temperature at region