Question 21
Look at Fig. 1.3 and suggest in which of the vessels A,B, C or D the rate of evaporation will be the highest ? Explain.

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Solution

(c) The rate of evaporation increases with an increase of surface area because evaporation is a surface phenomenon. Also, with the increase in airspeed, the particles of water vapour will move away with the air, which will increase the rate of evaporation.

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