Question

Take 5 mL of water in a test tube and keep it near a window or under a fan.

Take 5 mL of water in an open china dish and keep it near a window or under a fan.

Take 5 mL of water in an open china dish and keep it inside a cupboard or on a shelf in your

class.

Record the room temperature.

Record the time or days taken for the evaporation process in the above cases.

Repeat the above three steps of activity on a rainy day and record your observations.

What do you infer about the effect of temperature, surface area and wind velocity (speed) on

evaporation?​

Answer 1

Answer:

Open china dish will provide more surface area for evaporation as compared to test tube, so more early evaporation will occur in china dish.

Similarly, inside the cupboard or shelf, the wind and sunlight won't be able to directly cause much of evaporation as compared to dish placed in the window or under the fan. More wind or temperature, more will be the evaporation.

On a rainy day, temperature will be less so negligible evaporation will occur

Answer 2

Answer:

same as given above ... hope it helps