Fig. Particles of liquid( water) are loosely packed than solid and have space between them whereas particles of gas are loosely packed and have excess space between the particles
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Characteristics of solid state
They have definite shape due to strong Intermolecular forces of attraction.
o They have distinct boundaries. o They have a fixed volume. o They cannot flow.
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They have negligible compressibility due to negligible distance between the neighbouring molecules.
They possess a tendency to uphold their shape when exposed to external force.
They break under force but it is difficult to change their shape so they are rigid.
o They have high density and do not diffuse at all.
Fig. Particles of solid( Wooden plank) are compact together and have less space between them
Amorphous Solids
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The term amorphous solid is derived form a Greek word amorphous meaning no form.
The constituent particles are arranged in a short range order with a regular and periodically repeating pattern over short distances.
These solids get softened at a certain temperature and hence can be moulded and drawn into various desired shapes. Solids may also acquire crystalline form at some temperature when heated.