Cooling Graph

Question 1

Firsts Line down (AB)

Answer 1

1. Cooling of Gas
2. Temp decreases till condensing point
3. KE decreases

Question 2

First Straight Line (BC)

Answer 2

1. Condensation of gas to liquid
2. Temp remains
3. PE decreases

Question 3

Second Line down (CD)

Answer 3

1. Cooling of liquid
2. Temp decreases to freezing pt
3. KE decreases

Question 4

Second Straight Line (DE)

Answer 4

1. Freezing of a liquid solidification
2. Temp remains
3. PE decreases

Question 5

Third Line down (EF)

Answer 5

1. Cooling of a sold
2. Temp decreases
3. KE decreases