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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
What is meant by the intermolecular forces of attraction? How do they vary in solids, liquids and gases?
Fill in the blank
A solid exerts pressure .....................
Fill in the blank
A solid is ............ rigid.
Distinguish between solids, liquids, and gases on the basis of their following properties :
(a) compressibility
(b) fluidity
(c) rigidity
(d) expansion on heating
Water cycle is an example of interconversion of states of water. Explain.
Fill in the blank
Water boils at .............
Give two examples for of the following
Substances which are rigid and not compressible.
What is meant by the inter-molecular forces of attraction ?
Fill in the blank with the correct word Given below.
From the three states of matter, _____ expand the least.
Match the characteristics of the three states of matter in List I with their correct answer from List II.
| List I | List II |
| 1. Are highly rigid and have a definite shape | A: Solids and gases only |
| 2. Have no definite shape | B: Solids only |
| 3. Have definite volume but no definite shape | C: Liquids and gases only |
| 4. Are highly compressible and least rigid | D: Gases only |
| 5. Have no definite volume | E: Solid, liquids and gases |
| 6. Have no definite shape and volume |
F: liquids only |
| 7. Occupy space | G: Solids and liquids only |
| 8. Are not compressible | |
| 9. Are slightly compressible | |
| 10. Have mass |
