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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
What do you observe when a gas jar which appears empty is inverted over a gas jar containing Bromine vapours? Name the phenomenon.
What are fluids ? Give two examples.
Name the three states of matter and define them.
What is volume ?
What happens when a solid is heated ?
Give an experiment to explain that there are intermolecular spaces between water molecules.
A piece of chalk can be broken into small particles by hammering but a piece of iron cannot be taken into small particles by hammering. Which characteristic of the particles of matter is illustrated by these observations?
Explain the term ‘interconversion of matter’ with ice as a starting material.
With reference to the liquid state of matter – answer the following
State why the inter-particles attraction decreases to negligible.
Mention any two characteristics of the particles of matter.
