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प्रश्न
What happens when a solid is heated?
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उत्तर
When a solid is heated, its molecules gain energy and vibrate faster. A stage comes, when they overcome the intermolecular force of attraction and start moving from each other. This results in the melting of solid.
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संबंधित प्रश्न
Water evaporates only at 100°C.
What is meant by the intermolecular forces of attraction? How do they vary in solids, liquids and gases?
Fill in the blank
In a solid, the molecules ............................................ but they remain at their fixed positions.
Describe the molecular model for a liquid. I-low does it explain that a liquid has no definite shape, but has a definite Volume?
Name the phenomenon which cause the following change.
Conversion of ice into water.
Multiple choice question.
The state of matter which has no definite shape or volume is called
Multiple choice question.
Gases
Which one is a kind of matter
All kinds of matter
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 |
