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प्रश्न
Differentiate the general properties of solids, liquids and gases in the form of a table — with reference to shape.
उत्तर
| Solids | They have a definite shape |
| Liquid | They have no shape |
| Gases | They have no shape |
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संबंधित प्रश्न
Define the following terms.
Atom
Write your observation and conclusion for the following.
When a small stone is gently dipped into a glass filled with water.
For the following statement, say whether it describes a solid, a liquid or a gas.
Particles move about very quickly.
All kinds of matter
- occupy space and have definite mass
- have mass and definite shape
- can change their states
- have definite volume
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.
Give reason
When an empty gas jar is inverted over a gas jar containing a coloured gas, the gas also spreads into the empty jar.
When a beam of sunlight enters a room through a window, we can see tiny particles X suspended in a gas (or rather a mixture of gases) Y which are moving rapidly in a very haphazard manner.
- What could particles X be ?
- Name the gas (or mixture of gases) Y.
- What is the phenomenon exhibited by particles X known as ?
- What is causing the movement of particles X ?
- What conclusion does the existence of this phenomenon give us about the nature of matter ?
Give a reason why solids and liquids co-exist at their melting points.
Select the correct answer from A, B, C, D & E for the statement given below:
The state of matter, where the inter-particle attraction between particles is maximum.
