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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
Temperature of a liquid rises during boiling or vaporization
All molecules of a liquid take part in boiling.
Boiling occurs at ....................
Evaporation takes place at ................. .
The molecules of liquid ............. heat from surroundings in evaporation.
Heat is ................... during boiling.
In evaporation
Comment on the statement ‘evaporation is a surface phenomenon’.
Give reason for the increase in rate of evaporation of a liquid when air is blown above the liquid.
Give reason for the increase in the rate of evaporation of a liquid when temperature of liquid is increased.
