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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
Water at 100°C has more heat than the steam at 100°C.
Boiling takes place at all temperatures.
Fill in the blank
A solid exerts pressure .....................
Write down five general properties of solids, liquids, and gases.
Explain the change of a solid into a liquid at a constant temperature.
Give a reason for the Gases can be compressed easily.
Fill in the blank
The temperature at which a liquid boils is called the ................. point of that liquid.
Fill in the blank
When a gas is cooled, its molecules .............. energy.
Name the phenomenon which cause the following change.
Disappearance of camphor.
Give two examples for of the following
Substances which are rigid and not compressible.
