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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
Under what conditions do solids, liquids and gases change their state.
Fill in the blank
Liquids have no definite ______
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.
Gases
Select the correct alternative
The inter-molecular forces in liquids are
Match the column.
| Column A | Column B |
| 1. iron and gold | a. molecules are very far apart |
| 2. melting | b. pure substance |
| 3. intermolecular space | c. non-metals |
| 4. compound | d. the space between the molecules |
| 5. gases | e. changes from solid to liquid |
| f. metals |
Identify the odd term out and explain.
Hydrogen, sodium, potassium, carbon
Write a scientific reason.
Hydrogen is combustible, oxygen helps combustion, but water helps to extinguish fire.
Write scientific reasons.
Lemon sherbat has a sweet, sour and salty taste and it can be poured in a glass.
Write scientific reason.
Lemon sherbat has sweet, sour and salty taste and it can be poured in a glass.
