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प्रश्न
What are the three states of matter ? Define each of them with two examples.
टीपा लिहा
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उत्तर
The three states of matter are solids, liquids and gases :
- Solids - A solid has a definite shape and definite volume.
Example – wood, stone, iron, ice etc. - Liquid - A liquid has a definite volume but not definite shape.
Example - water, juice, milk, oil, etc. - Gases - A gas neither has definite shape nor a definite volume.
Example - air, hydrogen, oxygen, watervapour etc.
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Kinetic Theory of Matter
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संबंधित प्रश्न
Define matter.
What are molecules ?
What is the relation between intermolecular space and intermolecular force ?
What happens when a solid is heated ?
Give reason:
A gas fills up the space available to it.
Give reason:
Liquids have definite volume but no difinite shape.
Which one is a kind of matter:
- light
- petroleum
- sound
- heat
State the main postulate of the kinetic theory with special reference to Inter-particle space.
State the main postulates of the kinetic theory with special reference to – Inter-particle attraction.
Give reason for the following
Particles of matter possess energy called kinetic energy.
