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प्रश्न
Differentiate the general properties of solids, liquids and gases in the form of a table — with reference to free diffusion.
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उत्तर
| Solids | They have no diffusibility |
| Liquid | They have slight diffusibility |
| Gases | They have high proper diffusibility |
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संबंधित प्रश्न
Fill in the blank:
The physical state of a substance, which has a fixed volume but no fixed shape is .........
The process by which a solid changes into a liquid is called
- freezing
- melting
- condensation
- evaporation
Gases
- cannot be compressed easily,
- occupy the entire space of the container.
- have definite shapes.
- cannot flow.
Fill in the blank
Molecules in a ________ are packed very closely.
Fill in the blank
When a gas is cooled, its molecules ________ energy,
In which of the following conditions, the distance between the molecules of hydrogen gas would increase?
- increasing pressure on hydrogen contained in a closed container
- some hydrogen gas leaking out of the container
- increasing the volume of the container of hydrogen gas
- adding more hydrogen gas to the container without increasing the volume of the container
Give reasons for the following:
Sugar can be distinguished from talcum powder using water.
Define the Solid and give two examples.
Give a reason why solids and liquids co-exist at their melting points.
Water obtained from tube wells is usually ______ water.
