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प्रश्न
What are the characteristics of particles of matter?
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उत्तर
- Matter is made up of small particles that humans cannot perceive with their naked eyes.
- Spaces exist between the particles of matter.
- Matter particles are attracted to one another by intermolecular interactions. Solids have the greatest attraction forces, whereas gasses have the least. Intermolecular forces exist between solids and gases.
- Matter particles are constantly moving rather than stationary.
- As intermolecular spaces expand, intermolecular forces decrease, and vice versa.
- The kinetic energy of molecules increases as the temperature rises.
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संबंधित प्रश्न
Classify the following into solids, liquids and gases.
Oxygen, milk, common salt, wax, stone, water vapour, carbon-dioxide, sugar, mercury, coal, blood, butter, copper, coconut oil, kerosene.
Fill in the blank:
The temperature at which a liquid boils is called the................. point of that liquid.
Write true or false for statement. Rewrite the false statement correctly.
Solids can be compressed easily.
What happens when a solid is heated ?
Give reason Liquids can flow easily
What is the general name of :
- rigid form of matter ?
- fluid forms of matter ?
What is meant by 'diffusion'? Give one example of diffusion in gases.
Differentiate the general properties of solids, liquids and gases in the form of a table — with reference to shape.
State in which of the three states of matter:
The force of attraction between the particles is very weak.
Fill in the blank:
Particles in a gas possess ___________ kinetic energy.
