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प्रश्न
In evaporation
पर्याय
all molecules of liquid begin to escape out
only the molecules at the surface escape out
the temperature of liquid rises by absorbing heat from surroundings.
the molecules get attracted within the liquid.
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उत्तर
only the molecules at the surface escape out
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संबंधित प्रश्न
Temperature of a liquid rises during boiling or vaporization
Boiling is a rapid phenomenon.
Boiling occurs at ....................
Evaporation takes place at ................. .
Heat is ................... during boiling.
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 |
No heat is supplied to a liquid during evaporation. How does then the liquid change into its vapours?
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?
How is the heat energy supplied to a liquid used during boiling at a fixed temperature?
