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प्रश्न
Give reason :
Why do liquids and gases flow but solids do not?
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उत्तर
The molecules of liquids and gases are far apart i.e. have more gaps, intermolecular attraction force is very less as compared to solids, hence liquids and gases can flow but solids do not like gaps in solid molecules is a less and molecular force of attraction very strong.
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संबंधित प्रश्न
What do you mean by the change of state of matter?
Explain the change of a solid into a liquid at a constant temperature.
Classify the following into solids, liquids, and gases. Oxygen, milk, common salt, wax, stone, water vapour, carbon-dioxide, sugar, mercury, coal, blood, butter, copper, coconut oil, kerosene.
Fill in the blank
Any matter which has a definite ................. but no definite shape is called a ...............
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Liquids have no definite ...........
Write whether the following statement is true or false.
Intermolecular force of attraction is greater in gases than in liquids.
Write true or false for the statement. Rewrite the false statement correctly.
Solids can be compressed easily.
Name the phenomenon which cause the following change.
Formation of water vapour from water.
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 |
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 |
