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प्रश्न
What do you mean by the change of state of matter?
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उत्तर
The change in the state of matter of a substance from solid to liquid or from liquid to gas is brought by imparting heat energy to it at a constant temperature.
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संबंधित प्रश्न
The temperature of a substance remains unaffected during its change of state.
Fill in the blank
The inter-molecular spacing is .......... in solids ........... in liquids and ............... in gases.
Give reason :
Why do liquids and gases flow but solids do not?
Fill in the blank
Liquids have a definite ............
Fill in the blank
When a gas is cooled, its molecules .............. energy.
Write true or false for the statement. Rewrite the false statement correctly.
The intermolecular space in a gas is almost negligible.
For the following statement, say whether it describes a solid, a liquid, or a gas.
Particles move about very quickly.
For the following statement, say whether it describes a solid, a liquid, or a gas.
Particles are quite close together.
For the following statement, say whether it describes a solid, a liquid, or a gas.
Particles are far apart and move in all directions.
Fill in the blanks:
Water is a matter because it has ______ and occupies ______.
