Question

Directions: Identify the following processes if it is an exothermic or endothermic.

1. Cutting of paper
2. Rotation of the blades of an electric fan
3. Digestion of Food
4. Decomposition of Waste in compost heap
5. Boiling of water
6. Melting of Ice
7. Evaporation of Alcohol
8. Condensation of water vapor
9. Freezing of water
10. Solidification of Agar

Answer 1

1. Cutting of paper$\rightarrow$ Exothermic
2. Rotation of the blades of an electric fan$\rightarrow$ Exothermic
3. Digestion of Food$\rightarrow$ Exothermic
4. Decomposition of Waste in compost heap$\rightarrow$ Endothermic
5. Boiling of water$\rightarrow$ Exothermic
6. Melting of Ice $\rightarrow$ Endothermic
7. Evaporation of Alcohol $\rightarrow$ Exothermic
8. Condensation of water vapor $\rightarrow$ Endothermic
9. Freezing of water $\rightarrow$ Endothermic
10. Solidification of Agar $\rightarrow$ Endothermic