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प्रश्न
Write your observation and conclusion for the following:
When a small stone is gently dipped into a glass filled with water.
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उत्तर
You will see that some water flows out of the tumbler and collects in the bowl. Remove the stone from the tumble. The level of water in the tumbler comes down. Now, pour the water collected in the bowl back into the tumbler. The glass tumbler is filled again. This is because the stone occupied space and therefore drives the water out of the tumbler. This proves that not only solids but liquids also occupy space.
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संबंधित प्रश्न
Name the terms for the process due to which a solid directly changes into its vapours.
Define Intermolecular space.
Write whether the following statement are true or false.
All solids, on heating, first change to the liquid and then to the gaseous state always.
What are molecules?
Define Intermolecular force
Write whether the following statement is true or false.
A gas has no free surface.
Multiple choice question.
All kinds of matter
Give two examples.
Gaseous element
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 |
Write scientific reason.
Lemon sherbat has sweet, sour and salty taste and it can be poured in a glass.
