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प्रश्न
Explain the following :
When an incense stick is lighted in the corner of a room, its fragrance spreads quickly in the entire room.
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उत्तर
The fragrance of lit incense stick spreads quickly in the room because the particles of matter are continuously moving in all directions. Both air and fragrance of incense stick have large intermolecular spaces. Due to this, the particles of one can easily occupy the inter-molecular spaces of the other.
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संबंधित प्रश्न
Name the three states of matter and define them.
Fill in the blank:
All matter is made up of tiny particles called..................
Name the phenomenon which cause the following change:
Disappearance of camphor.
A substance which can change its state
- wood
- oxygen
- paper
- cloth
Fill in the blank:
The quantity of matter in an object is called its _____
Fill in the blank
Matter is anything that has ______ and occupies ______
Which of the following statement is incorrect?
Define: interconversion of states of matter.
Match the characteristics of the three states of matter in List I with their correct answer from List II.
| List I | List II |
| 1. Have no definite shape, volume or free surface | A: Solids only |
| 2. Are highly compressible and least rigid | B: Liquids only |
| 3. Have a definite volume, no definite shape and are slightly diffusable | C: Gases only |
| 4. Are not compressible and have no diffusability | D: Liquids and gases only |
| 5. Have mass and occupy space | E: Solids and gases only |
| F: Solids, liquids and gases |
State in which of the following examples ie. a piece of wood, water, light gas is the Energy possessed by particles of matter, very large.
