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प्रश्न
Evaporation takes place at ...............temperature.
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उत्तर
Evaporation takes place at all temperature.
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संबंधित प्रश्न
The process of a gas converting directly into solid is called vaporization.
Fill in the blank
The gases are .......... dense.
State three characteristics of molecules of matter.
Distinguish between the three states of matter—solid, liquid, and gas on the basis of their molecular models
Fill in the blank
The temperature at which a liquid boils is called the ................. point of that liquid.
Name the phenomenon which cause the following change.
Formation of water vapour from water.
Name the three states of matter and define them.
Match the following
| Column A | Column B | ||
| a | Solids | 1 | Can flow in all directions |
| b | Sublimination | 2 | The temperature at which a liquid changes into its gaseous state |
| c | Boiling Point | 3 | Can have any number of free surfaces |
| d | Gases | 4 | Gaps between particles |
| e | Intermolecular space | 5 | Change of state from solid to gas |
Complete the statement given below by selecting the correct word.
____ is an example of a crystalline substance.
State the property of the following substance.
Hydrogen sulphide gas has a strong rotten egg odour.
