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प्रश्न
Heat is ................... during boiling.
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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
Temperature of a liquid rises during boiling or vaporization
All molecules of a liquid take part in boiling.
Boiling is a rapid phenomenon.
The molecules of liquid ............. heat from surroundings in evaporation.
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 |
The rate of evaporation of a liquid increases when:
During boiling or vaporization
No heat is supplied to a liquid during evaporation. How does then the liquid change into its vapours?
What is boiling? Explain it on the basis of molecular motion?
How is the heat energy supplied to a liquid used during boiling at a fixed temperature?
