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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.
Water evaporates only at 100°C.
The melting point of ice is 0°C.
Give the molecular model for a solid and use it to explain why a solid has a definite volume and a definite shape.
A gas has neither a definite volume nor a definite shape. Describe the molecular model to explain it.
How a liquid changes into its gaseous state? Explain?
Fill in the blank
Any matter which has a definite ................. but no definite shape is called a ...............
Write true or false for the statement. Rewrite the false statement correctly.
Solids can be compressed easily.
Name the three states of matter and define them.
State the property of the following substance.
Hydrogen sulphide gas has a strong rotten egg odour.
