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प्रश्न
Write down five general properties of solids, liquids, and gases.
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उत्तर
Solids:
- The molecules here are very tightly packed having negligible or very less intermolecular space.
- They have the strongest intermolecular force of attraction.
- The molecules have very small vibration about their mean position i.e. small amplitude.
- They have a definite shape and volume.
- They are generally hard and rigid.
- They are good conductors of heat.
Liquids:
- Molecules are less tightly packed.
- The intermolecular force of attraction is less than that of solids.
- The molecules here can move from one place to another
- Do not have any particular shape of their own and thus acquire the shape of the vessel.
- A particular quantity of a liquid has a definite volume at a given temperature.
Gases :
- The force of attraction between the molecules is the least.
- The intermolecular space is the largest.
- Neither has a definite shape nor a definite volume.
- The molecules move independently.
- Worst conductors of heat.
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संबंधित प्रश्न
The temperature of a substance remains unaffected during its change of state.
Write true or false for the following statement
The liquids are less viscous than the gases.
Fill in the blank
A solid exerts pressure .....................
How do the solids, liquids, and gases differ in their following properties.
(a) Size
(b) Shape
(c) Density
Why do solids, liquids, and gases differ in their physical states?
State the general properties of a solid.
Fill in the blank
When a gas is cooled, its molecules .............. energy.
Give two examples for each type of matter
One kind of matter can be distinguished from another by its physical properties and chemical properties.
State the correct term from A, B, C, D, E, or F in List II which represents the change of state of matter or its relevant property from List I.
| List I | List II |
| 1. Solid 'X' to a Liquid 'X' | A: Condensation |
| 2. Liquid 'Y' to its vapour 'Z' | B: Vaporization |
| 3. 'Z' to 'Y' | C: Melting |
| 4. 'Y' to 'X' | D: Freezing |
| 5. The temperature at which 'Y' changes to 'Z' | E: Melting point |
| F: Boiling point |
