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प्रश्न
Fill in the blank
In a solid, the molecules ............................................ but they remain at their fixed positions.
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उत्तर
In a solid, the molecules vibrate on either side but they remain at their fixed positions.
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संबंधित प्रश्न
The melting point of ice is 0°C.
.............. process is just reverse of melting.
State three properties of molecules of a matter.
What is meant by the intermolecular forces of attraction? How do they vary in solids, liquids and gases?
Describe the molecular model for a liquid. I-low does it explain that a liquid has no definite shape, but has a definite Volume?
Differentiate between the following:
Liquids and gases
Fill in the blank
Water boils at .............
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When a gas is cooled, its molecules .............. energy.
Write true or false for the statement. Rewrite the false statement correctly.
If the intermolecular space is more than the intermolecular force will be weaker.
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 |
