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प्रश्न
When sugar is dissolved in water, there is no increase in the volume. Which characteristic of matter is illustrated by this observation?
उत्तर
The absence of increase in volume of water on dissolution of sugar into it, describes the following characteristics of matter:
- Matter is made up of very, very small particles.
- Particles of matter have spaces between them.
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संबंधित प्रश्न
Give reasons:
Solids cannot be compressed.
What are fluids ? Give two examples.
Fill in the blank:
Liquids have a definite ............
Write whether the following statement is true or false.
If the container in which a gas is collected has an opening, the gas will flow out and spread itself indefinitely.
For the following statement, say whether it describe a solid, a liquid or a gas.
Particles are quite close together.
What is the general name of :
- rigid form of matter ?
- fluid forms of matter ?
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
Name the three states of matter.
Give a reason why –
Liquids have a definite volume but no definite shape.
Mention any two characteristics of the particles of matter.
