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प्रश्न
Heat is ................... during boiling.
रिकाम्या जागा भरा
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उत्तर
Heat is absorbed during boiling.
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Change of Liquid into Vapour State
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संबंधित प्रश्न
Evaporation takes place only from the surface of liquid.
All molecules of a liquid take part in boiling.
Evaporation takes place at ................. .
Match the column
| Column A | Column B |
| (a) Blowing air increases | (1) Increase in intermolecular separation |
| (b) Increase in pressure increases | (2) Pendulum of a clock |
| (c) Thermal expansion |
(3) Cooking utensils |
| (d) Invar | (4) Boiling point |
| (e) Pyrex glass | (5) Evaporation |
In evaporation
The rate of evaporation of a liquid increases when:
Why is cooling produced when a liquid evaporates?
Give reason for the increase in the rate of evaporation of a liquid when temperature of liquid is increased.
What is boiling? Explain it on the basis of molecular motion?
Name two ways of change of liquid state to the vapour state and distinguish them.
