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प्रश्न
Define of Brownian motion.
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उत्तर
Brownian motion: The haphazard, random motion of suspended particles on the surface of a liquid or in air is called ‘Brownian motion’.
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संबंधित प्रश्न
What are molecules ?
What happens when a solid is heated ?
Give reason for the following.
Liquids can flow easily.
Give reason:
When a teaspoon of sugar is added to half a glass of water and stirred, the water level in the glass does not rise.
Give an experiment to explain that there are intermolecular spaces between water molecules.
Fill in the blank:
The molecules are at a greater distance in ............. compared to liquids.
Write true or false for statement. Rewrite the false statement correctly.
Matter cannot exist in different states.
With reference to inter-conversion of matter – on the basis of kinetic theory – explain in brief the conversion of A solid into a liquid With special reference to inter-particle space & interparticle attraction at the different stages of conversion.
With reference to inter-conversion of matter – on the basis of kinetic theory – explain in brief the conversion of A liquid into vapour [or gas] With special reference to inter-particle space & interparticle attraction at the different stages of conversion.
Give reason for the following
Particles of matter possess energy called kinetic energy.
