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प्रश्न
Why liquids do not have a definite shape ?
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उत्तर
Molecules of a liquid are held by weak intermolecular forces. This force is strong enough to hold the molecules together but not strong enough to hold them at fixed positions. As a result liquids have a fixed volume but not shape.
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संबंधित प्रश्न
For the following statement, say whether it describes a solid, a liquid or a gas.
Particles are far apart and move in all directions.
Name the phenomenon which cause the following change:
Formation of water vapour from water.
A substance which can change its state
- wood
- oxygen
- paper
- cloth
Give reason of The odour of scent spreads in a room.
Give reason
A red ink drop added to small amount of water in a glass turns water red in some time.
The state of matter which has no definite shape or volume is called
A piece of chalk can be broken into small particles by hammering but a piece of iron cannot be taken into small particles by hammering. Which characteristic of the particles of matter is illustrated by these observations?
Which one of the following statements is not true?
- the molecules in a solid vibrate about a fixed position
- the molecules in a liquid are arranged in a regular pattern
- the molecules in a gas exert negligibly small forces on each other, except during collisions
- the molecules of a gas occupy all the space available
State in which of the three states of matter:
The movement of the particles is neither about their own positions nor in any random direction.
Complete the statement by filling the blank with the correct word given below.
When inter-particle space increases, the inter-particle attractive force _______________.
