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प्रश्न
The boiling point of a liquid is increased by
विकल्प
increasing the volume of liquid
increasing the pressure, on liquid
adding ice to the liquid
decreasing pressure on liquid.
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उत्तर
increasing the pressure, on liquid
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संबंधित प्रश्न
All molecules of a liquid take part in boiling.
Boiling is a rapid phenomenon.
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 |
Do all the molecules of a liquid take part in evaporation? If not, explain your answer.
Give reason for the increase in rate of evaporation of a liquid when surface area 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?
Name two ways of change of liquid state to the vapour state and distinguish them.
