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प्रश्न
Give reasons:
Solids cannot be compressed.
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उत्तर
In solids, particles are closely packed. There is a strong force of attraction and the intermolecular space is almost zero. Therefore the molecules are not free to move, which makes them hard and rigid. So solids can not be compressed.
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संबंधित प्रश्न
For the following statement, say whether it describes a solid, a liquid or a gas.
Particles move about very quickly.
For the following statement, say whether it describes a solid, a liquid or a gas.
Particles are far apart and move in all directions.
Match the following
| Column A | Column B |
| (a) Solids | (1) Can flow in all directions. |
| (b) Sublimation | (2) The temperature at which a liquid changes into its gaseous state. |
| (c) Boiling point | (3) Any number of free surfaces. |
| (d) Gases | (4) Gaps between particles. |
| (e) Intermolecular space | ro(5) Change of state fm solid to gas. |
Name the phenomenon which cause the following change:
Disappearance of camphor.
Give two examples of the following:
Substances which do not change their states.
A substance which can change its state
- wood
- oxygen
- paper
- cloth
When a stone is dipped in a glass containing some water, the level of water rises but when a spoon of sugar is added to it and stirred, the water level does not rise?
Write your observation and conclusion for the following,
When a small stone is gently dipped into a glass filled with water.
Define the Liquid and give two examples.
Give a reason why –
Solids have a definite volume & a definite shape.
