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प्रश्न
Why is cooling produced when a liquid evaporates?
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उत्तर
For changing liquid into vapours heat is needed this heat is taken from the container or surroundings and temperature of container or body itself fall and cooling is produced.
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संबंधित प्रश्न
Evaporation is rapid on a wet day.
Evaporation takes place only from the surface of liquid.
Boiling is a rapid phenomenon.
The molecules of liquid ............. heat from surroundings in evaporation.
Cooling is produced in ....................
The rate of evaporation of a liquid increases when:
The boiling point of a liquid is increased by
Comment on the statement ‘evaporation is a surface phenomenon’.
Give reason for the increase in the rate of evaporation of a liquid when temperature of liquid is increased.
How is the heat energy supplied to a liquid used during boiling at a fixed temperature?
