Question

[EASY][50pt] Temperature vs Time Graph
5. In what state of matter does this substance exist at the 22 minute mark?

6.At what temperature does condensation occur?

7.What phase change occurs at 70C

Answer 1

#5

At 22min the temperature is at 40°C

• So the matter is at solid state.

#6

Graph ended at 20°C so condetion occured at 20°C

#7

After 70°C the matter got melted do its at liquid state