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प्रश्न
For the following statements, say whether it describes a solid, a liquid or a gas.
Particles move about very quickly.
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उत्तर
Particles move about very quickly Liquid
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संबंधित प्रश्न
Define: Gas.
For the following statements, say whether it describes a solid, a liquid or a gas.
Particles are quite close together
Name the phenomenon which causes the Conversion of ice into water is
Name the phenomenon which causes the Conversion of water into steam is
Give two examples for the following :
Substances which do not change their states.
The molecules in a substance are in motion. What type of path do they follow?
Give one difference between atoms and molecules.
Give reason :
We can walk through air.
Particles of matter possess energy due to their random motion. Compare the particles in a solid, liquid and in gas with reference to the amount of kinetic energy possessed by each.
State the correct term from A, B, C, D, E or F in List II which represents the – change of state of matter or its relevant property from List I
| List I | List II |
| 1. Solid 'X' to a liquid 'Y' | A: Liquefaction |
| 2. Liquid 'Y' to its vapour 'Z' | B: Vaporization |
| 3. 'Z' to 'Y' | C: Melting |
| 4. 'Y' to 'X' | D: Solidification |
| 5. The temperature at which 'Y' changes to 'Z' | E: Melting Point |
| F: Boiling point |
