NCERT Solution for Class 9 Science Chapter 1
Matter in Our Surroundings
NCERT Books for Session 2022-2023
CBSE Board and UP Board
Intext Questions
Page No-6
Questions No-2 Part-1
Tabulate the differences in the characteristics of states of matter.
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All solid, liquid, or gas is defined by its unique characteristic traits among these fundamental states of matter. This is because solid molecules possess tightly-packed particles that vibrate with very less mobility but maintain shape and volume, hence rigidity and no flow ability. “` Contribution: However, such individuals have a tendency of having their hands and legs crossed behind them in a closed position. Solids show minimal volume change but adopt a shape similar to the container while liquids remain definite volume but assume some of the container’s features while fluids are completely fluid. Unlike gases that do not have specific shape or volume; dispersed particles, which moves freely within it, results very low rigidity and a lot of fluidity. Compressibility of solids and liquids is lower than that of gases because the particle distance is great. Gases take all the available space and solids as well as some liquids do not fully occupy their containers. Particles are close with solid densities being high while gas densities are low, reflecting particle arrangements and spacings. This is because the characteristic features show how the states differ and exhibit their peculiar behavior and inherent qualities under normal or special situations.
The differences in the characteristics of states of matter are given in the following table.
Solid state:
1. Definite shape and volume.
2. Incompressible
3. There is little space between the particles of a solid.
4. These particles attract each other very strongly.
5. Particles of solid cannot move freely.
Liquid state:
1. No definite shape. Liquids attain the shape of the vessel in which they are kept.
2. Compressible to a small extent.
3. These particles have a greater space between them.
4. The force of attraction between liquid particles is less than solid particles.
5. These particles move freely.
Gaseous state:
1. Gases have neither a definite shape nor a definite volume.
2. Highly compressible
3. The space between gas particles is the greatest.
4. The force of attraction is least between gaseous particles.
5. Gaseous particles are in a continuous, random motion.