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प्रश्न
Name the phenomenon which cause the following change.
Formation of water vapour from water.
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उत्तर
Formation of water vapour from water is vaporation.
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संबंधित प्रश्न
The temperature of a substance remains unaffected during its change of state.
Evaporation takes place over the entire mass of the liquid.
Fill in the blank
The inter-molecular forces are the weakest in ...............
What happens when a solid is heated?
Write whether the following statement is true or false.
If the container in which a gas is collected has an opening, the gas will flow out and spread itself indefinitely.
Name the phenomenon which cause the following change.
Disappearance of camphor.
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 |
Which one is a kind of matter
One kind of matter can be distinguished from another by its physical properties and chemical properties.
Match the arrangement of atoms in the three states of matter in List I with the correct state in List II.
| List I | List II |
| 1. Arrangement of atoms is far apart | A: Solids |
| 2. Force of attraction between atoms is very strong | B: Liquids |
| 3. Movement of atoms is in any random direction | C: Gases |
| 4. Particles diffuse very easily | |
| 5. Particles show movement about their own position |
