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प्रश्न
Water cycle is an example of interconversion of states of water. Explain.
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उत्तर
Water from oceans, rivers lakes from leaves of trees (transperation) changes into vapours when the temperature increases or evaporates and enters the atmosphere as clouds when the temperature falls the vapours change into the water and some of it in the form of snowfall on mountains and earth in the form of water and hales and this continues. Thus water cycle is an example of interconversion of states of water.
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संबंधित प्रश्न
Write down five general properties of solids, liquids, and gases.
Define interconversion of states of matter.
Give a reason for the Pure substances have fixed melting or boiling points.
Differentiate between the following:
Liquids and gases
For the following statement, say whether it describes a solid, a liquid, or a gas.
Particles move about very quickly.
Multiple choice question.
The state of matter which has no definite shape or volume is called
Explain the term ‘matter'
Fill in the blank with the correct word Given below.
Matter can change from one state to another by the change in ____
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 |
Define the term ‘Liquefaction of gases’.
