An equal amount of water is kept in a cup and saucer. It evaporates faster from the saucer due to the difference in the _________.
A
humidity
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B
surface area
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C
wind speed
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D
temperature
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Solution
The correct option is B surface area The phenomenon of change of a liquid into vapours at any temperature below its boiling point is called evaporation.
Evaporation is a surface phenomenon.
The rate of evaporation increases with the increase in surface area. So liquids evaporate quickly from the flat surfaces.
Thus, water evaporates faster from the saucer due to difference in the surface area.