Solids have a distinct volume and form. Although they have a specific capacity, liquids adopt the form of a container. Gases lack a distinct volume or form.
Gas is a sample of matter that adopts the shape of the container in which it is housed and develops a uniform density inside the container.
a)Particle motion
Liquid molecules are more energetic than solid molecules. Further heating will cause the molecules to move so quickly that they won't stick together at all. The gas molecules have the highest energy content.
b)Shapes
Solids are discrete in their shape and volume. Although they take on the shape of the container, liquids have a specific volume. The form and volume of gases are ambiguous.
c)Compressibility
The solid or liquid's constituent atoms, ions, or molecules are in close proximity to one another.
The greater compressible nature of gases compared to liquids or solids is explained by the kinetic-molecular hypothesis.
Hence solids, liquids, and gases differentiate in terms of particle motion, shape, and compressibility.
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