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प्रश्न
Fill in the blank
When a gas is cooled, its molecules .............. energy.
उत्तर
When a gas is cooled, its molecules loose energy.
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संबंधित प्रश्न
The temperature of a substance remains unaffected during its change of state.
Write true or false for the following statement
In a gas, the molecules can move anywhere in space.
Why do solids, liquids, and gases differ in their physical states?
Define interconversion of states of matter.
Give reason :
Why do liquids and gases flow but solids do not?
Write whether the following statement is true or false.
The intermolecular force of attraction is the weakest in gases.
For the following statement, say whether it describes a solid, a liquid, or a gas.
Particles are quite close together.
What are the two main types of matter?
Differentiate between living and non-living matter.
Match the characteristics of the three states of matter in List I with their correct answer from List II.
| List I | List II |
| 1. Are highly rigid and have a definite shape | A: Solids and gases only |
| 2. Have no definite shape | B: Solids only |
| 3. Have definite volume but no definite shape | C: Liquids and gases only |
| 4. Are highly compressible and least rigid | D: Gases only |
| 5. Have no definite volume | E: Solid, liquids and gases |
| 6. Have no definite shape and volume |
F: liquids only |
| 7. Occupy space | G: Solids and liquids only |
| 8. Are not compressible | |
| 9. Are slightly compressible | |
| 10. Have mass |
