1.

5 mL of water was taken in a test tube and china dish separately. These samples were then kept under different conditions as below : (a) Both the samples are kept under a fan. (b) Both the samples are kept inside a cup board. State in which case evaporation will be faster ? Give reason to support your answer. (c) How will the rate of evaporation change if above activity is carried out on a rainy day ? Justify your answer.

Answer»

Solution :(a) Evaporation will be faster under a fan. Since fan helps in the fast movement of the air, water will GET more opportunity to evaporate under a fan than inside a CUP board. In this case, the outside air will not COME in CONTACT with water.
(b) On a rainy DAY, there is humidity in air. As a result, evaporation of water will slow down.


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