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प्रश्न
Give two reasons to justify that Water is a liquid at room temperature.
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उत्तर
Water is a liquid at room temperature due to the following characteristics:
- Water has fixed volume, but no fixed shape.
- Water flows freely.
Particles of water have large intermolecular spaces between them and intermolecular force of attraction between these particles is small. These characteristics facilitates water to behave like a liquid.
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संबंधित प्रश्न
The mass per unit volume of a substance is called density.
(density = mass/volume).
Arrange the following in order of increasing density-
air, exhaust from chimneys, honey, water, chalk, cotton and iron.
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Solid, Liquid, Gas Give reasons for your answer.
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What does the diffusion of gases tell us about their particles?
Give one example of diffusion of gases in a liquid.
Give reason for the following observation :
The smell of hot sizzling food reaches us even from a considerable distance but to get the smell from cold food, we have to go close to it.
Comment upon the following:-
rigidity
Comment upon the following:-
kinetic energy
Explain why?
- A gas fills a vessel completely?
- Camphor disappears without leaving any residue.
