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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
Evaporation takes place over the entire mass of the liquid.
What happens when a solid is heated?
Give a reason for the We need to classify things.
Give a reason for the Pure substances have fixed melting or boiling points.
Fill in the blank
The physical state of a substance, which has a fixed volume but no fixed shape is ...............
For the following statement, say whether it describes a solid, a liquid, or a gas.
Particles are far apart and move in all directions.
Multiple choice question.
Which of the following is a property of the liquids?
Give two examples for each type of matter
One kind of matter can be distinguished from another by its physical properties and chemical properties.
Match the arrangement of atoms in the three states of matter in List I with the correct state in List II.
| List I | List II |
| 1. Arrangement of atoms is far apart | A: Solids |
| 2. Force of attraction between atoms is very strong | B: Liquids |
| 3. Movement of atoms is in any random direction | C: Gases |
| 4. Particles diffuse very easily | |
| 5. Particles show movement about their own position |
