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प्रश्न
A crystal of iodine is placed in a closed flat bottom flask and heated. State how you would conclude from the observations seen, that interparticle space is minimum in solids and maximum in gases.
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उत्तर
Procedure:
A crystal of iodine is heated in a closed flask. The crystal containing ‘X’ no. of particles turns into vapours, which also contain ‘X’ no. of particles and fills the complete flask.
Conclusion:
- Particles of a solid [e.g. crystal of iodine] are more closely packed.
- Particles of a gas [e.g. vapours of iodine] are least closely packed and fill the flask completely.
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संबंधित प्रश्न
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- condensation
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Sugar can be distinguished from talcum powder using water.
Give a reason why solids and liquids co-exist at their melting points.
Fill in the blank:
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| 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 |
