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प्रश्न
Give reason of A gas fills up the space available to it.
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उत्तर
Intermolecular force of attraction is least and intermolecular spaces are very large, hence gases can fill up the space available to them.
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संबंधित प्रश्न
Match the columns.
| (1) iron and gold | (a) molecules are very far apart |
| (2) melting | (b) pure substance |
| (3) intermolecular space | (c) non - metals |
| (4) compound | (d) the space between the molecules |
| (5) gases | (e) change from solid to liquid |
| (f) metals |
Name the phenomenon which cause the following change:
Conversion of water into steam.
Write your observation and conclusion for the following,
When a small stone is gently dipped into a glass filled with water.
Give an experiment to explain that there are intermolecular spaces between water molecules.
Write whether the following statement are true or false.
Intermolecular force of attraction is greater in gases than in liquids.
State two characteristics of matter demonstrated by diffusion.
Define the Solid and give two examples.
Give a reason why:
Gases have no definite volume and no definite shape.
Air is not compressible.
Match the following.
| Property | Example |
| Breaks easily (Brittle) | Metal pan |
| Bends readily | Rubber band |
| Can be stretched easily | Cotton wool |
| Gets compressed easily | Mud pot |
| Gets heated readily | Plastic wire |
