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प्रश्न
What is meant by 'diffusion'? Give one example of diffusion in gases.
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उत्तर
Diffusion: In Latin, the word “diffusion” means to “spread out”. Diffusion is the mixing of a substance with another substance due to the motion of its particles. It is one of the several transport phenomena that occur in nature. The spreading of the smell of perfume in the whole room is an example of diffusion.
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संबंधित प्रश्न
Which of the following are matter?
Chair, air, love, smell, hate, almonds, thought, cold, lemon water, smell of perfume.
Match the columns.
| (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) change from solid to liquid |
| (f) metals |
If an object weighs 6 N on earth what will be its weight on moon. What will be the change in its mass?
What is mass ?
If an object is taken to the moon from the earth what will be its mass ?
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Differentiate the general properties of solids, liquids and gases in the form of a table — with reference to space.
State in which of the three states of matter:
The force of attraction between the particles is very weak.
State in which of the following examples ie. a piece of wood, water, light gas is the Inter-particle attraction maximum.
Complete the statement by filling the blank with the correct word given below.
When inter-particle space increases, the inter-particle attractive force _______________.
