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प्रश्न
Boiling occurs at ....................
उत्तर
Boiling occurs at a fixed temperature.
APPEARS IN
संबंधित प्रश्न
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 |
The rate of evaporation of a liquid increases when:
The boiling point of a liquid is increased by
No heat is supplied to a liquid during evaporation. How does then the liquid change into its vapours?
Give reason for the increase in rate of evaporation of a liquid when surface area of liquid is increased.
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?
What is the change in average kinetic energy of molecules of a liquid during boiling at its boiling point?
Name two ways of change of liquid state to the vapour state and distinguish them.
