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प्रश्न
Water cycle is an example of inter conversion of states of water. Explain.
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उत्तर
Water from oceans, rivers lakes from leaves of trees (transperation) changes into vapours when temperature increases or evaporates and enters the atomsphere as clouds when temperature falls the vapours change into water and some of it in the form of snow fall on mountains and earth in the form of water and hales and this continues. Thus water cycle is example of inter convertion of states of water.
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संबंधित प्रश्न
Define interconversion of states of matter.
Differentiate between the following.
Liquids and gases .
Write whether the following statement are true or false.
There is no difference between evaporation and boiling.
Write whether the following statement are true or false.
A gas has no free surface.
Select the correct alternative
The inter-molecular forces are strongest in
The molecules in a substance are in motion. What type of path do they follow?
What is the relation between intermolecular space and intermolecular force?
Write your observation and conclusion for the following:
When a small stone is gently dipped into a glass filled with water.
Differentiate between the following:
Atoms and molecules
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 |
