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प्रश्न
Give reason of 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 as gaps in solid molecules is less and molecular force of attraction very strong.
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संबंधित प्रश्न
How a liquid changes into its gaseous state ? Explain ?
Fill in the blank:
Liquids have a definite ............
Gases
- cannot be compressed easily,
- occupy the entire space of the container.
- have definite shapes.
- cannot flow.
Even two or three crystals of potassium permanganate can impart colour to a very large volume of water. Which characteristic of particles of matter is illustrated by this observation?
Which of the following statement is incorrect?
State in which of the three states of matter:
The force of attraction between the particles is very weak.
Give a reason why solids and liquids co-exist at their melting points.
State the term which refers to the conversion of a substance on heating from.
- solid-state to liquid state
- liquid state to vapour state
- vapour state to liquid state
- liquid state to solid-state.
Match the characteristics of the three states of matter in List I with their correct answer from List II.
| List I | List II |
| 1. Have no definite shape, volume or free surface | A: Solids only |
| 2. Are highly compressible and least rigid | B: Liquids only |
| 3. Have a definite volume, no definite shape and are slightly diffusable | C: Gases only |
| 4. Are not compressible and have no diffusability | D: Liquids and gases only |
| 5. Have mass and occupy space | E: Solids and gases only |
| F: Solids, liquids and gases |
With reference to the liquid state of matter – answer the following
State why the inter-particles attraction decreases to negligible.
