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प्रश्न
During boiling or vaporization
पर्याय
all molecules take part
temperature rises
no heat is absorbed
the average kinetic energy of molecules increases.
MCQ
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उत्तर
all molecules take part
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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
Boiling is a rapid phenomenon.
Evaporation takes place at ................. .
Heat is ................... during boiling.
Cooling is produced in ....................
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:
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 the change in average kinetic energy of molecules of a liquid during boiling at its boiling point?
