Question

describe activity showing effect of surface area on rate of evaporation

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 

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