The Difference between Solid, Liquid and Gas
Introduction
Matter exists in three fundamental states: Solid, Liquid, and Gas. These three states of matter are commonly found on earth and have different properties with which they can be differentiated. The properties of these three physical states of matter are highly dependent on the arrangement and behavior of their constituent particles. The following article discusses the difference between solid, liquid, and gas for a class 9 audience.
Solid
Solid is the state of matter in which the constituent particles are closely packed and are held together by strong intermolecular forces. These forces act as a strong barrier to molecular motion, meaning solids retain their shape and volume without difficulty. They are highly dense and rigid and cannot be compressed. The molecules of a solid are unable to move freely, preventing them from changing shape or volume. Examples of solids include stones, metals, and ice.
Liquid
In a liquid state, constituent particles are still held together by intermolecular forces. However, these forces are weaker in comparison to solid. As a result, liquids have the ability to move moderately, which translates to flowing, taking the shape of the container it is placed in. Liquids have a fixed volume but do not retain a fixed shape. For example, water and oil are liquids, and they take the shape of the container in which they are poured.
Gaseous
Gases are made up of molecules or atoms which bounce around in a haphazard manner, permitting them to fill any empty space available. The weakest intermolecular forces hold gases together which are why they are highly compressible. Gases tend to expand when warmer and contract when colder. Examples of gases include oxygen, nitrogen, and carbon dioxide.
Conclusion
There is a significant difference between the three states of matter, which is why each state has a unique set of properties. Solid is a highly dense and rigid state where the molecules are unable to move freely, liquids take the shape of a container, but have a fixed volume, gases are highly compressible and expand when they get hotter. Understanding the difference between these states of matter can help to appreciate the functionality and behavior of various materials in our environment.
Table difference between solid liquid and gas for class 9
Sorry, as an AI language model, I cannot create a table. However, I can provide you with the text version of the same. Below is the difference between solid, liquid, and gas:
| Properties | Solid | Liquid | Gas |
|—|—|—|—|
| Shape | Definite shape | Indefinite shape | Indefinite shape |
| Volume | Definite volume | Definite volume | Indefinite volume |
| Inter-molecular space | Low | Moderate | High |
| Inter-molecular force | High | Moderate | Low |
| Density | High | Moderately high | Low |
| Compressibility | Negligible | Almost negligible | Highly compressible |
| Movement of particles | Vibrate around fixed positions | Move freely but tend to keep close to one another | Move rapidly and are far apart |
| Examples | Iron, rock, etc. | Water, milk, etc. | Air, oxygen, etc. |
I hope the above information helps.