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प्रश्न
A gas has neither a definite volume nor a definite shape. Describe the molecular model to explain it.
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उत्तर
Here the molecules are far apart from each other i.e. have the greatest intermolecular distance which results in the weakest intermolecular forces of attraction. The molecules as are not
bound by any strong force move about freely and thus gases do not have a definite shape and also do not have any definite volume.
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संबंधित प्रश्न
Boiling takes place at all temperatures.
What is meant by the intermolecular forces of attraction? How do they vary in solids, liquids and gases?
Fill in the blank
A solid is ............ rigid.
Explain the change of a liquid into a gas at a constant temperature.
State the general properties of a solid.
Differentiate between the following:
Liquids and gases
Multiple choice question.
The state of matter which has no definite shape or volume is called
What are the two main types of matter?
Explain the term ‘matter'
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 |
