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प्रश्न
Describe simple experiment to show that particles of matter have the intermolecular attraction
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उत्तर
Experiment – To show that particles of matter have the intermolecular attraction
Procedure –
- Globules of mercury are placed in a petri dish and kept at – a distance.
- The petri dish is shaken slowly and the mercury globules come together forming a big globule.
Conclusion – The above experiment concludes that a force of attraction exists between particles of matter.
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संबंधित प्रश्न
Define: Liquid.
Define Intermolecular space.
State the general properties of a solid.
Write true or false for each statement. Rewrite the false statement correctly.
Solids and liquids can flow.
A substance which can change its state
Select the correct alternative
The diameter of a molecule is approximately
Write your observation and conclusion for the following:
When a small stone is gently dipped into a glass filled with water.
Fill in the blank
Matter is anything that has .......... and occupies ...........
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 a sweet, sour and salty taste and it can be poured into a glass.
