Question

Evaporation and boiling differ by

• A. Evaporation is surface process, boiling occurs through out
• B. Boiling is surface process, evaporation occurs through out
• C. Boiling doesnot cause cooling, evaporation does
• D. Evaporation doesnot cause cooling, boiling does

Answer 1

Answer: (A), (C)

The correct options are
A

Evaporation is surface process, boiling occurs through out

C

Boiling doesnot cause cooling, evaporation does

Evaporation usually occurs on the surface of the vessel. It causes cooling effect(When evaporation occurs, this heat is taken from the water that remains in the liquid state, resulting in a cooler liquid.). Boling is a bulk phenomenon. It starts from the bottom part of the vessel.