Question

Describe an activity to show that rate of evaporation increases with surface area

Answer 1

Aim:
 To prove that Rate of evaporation increases with increase in surface area.

Apparatus required:

Any liquid[water], Petridish and test tube.

Procedure :

1. Take 10ml of water  in petridish and test tube and keep them under the fan.

2. Note down the time taken for evaporation in both the cases.

Observation:

-->we observe that more amount of water is evaporated in case of petridish.
since evaporation is a surface phenomena, during evaporation process the particles escape from the surface of liquid .
-->The increase in the surface are provides more scope fro particles from the surface.Hence increases rate of evaporation

Conclusion:

If surface  area increases then rate of  Evaporation increases 

Answer 2

Hope it may help you