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### Theory:

We know that matter is made up of tiny particles; particles are constant and random. Lets us now see the difference between the states of matter. The following below are the $$3$$ states of matter.
• Solid
• Liquid
• Gases

Characteristics of states of matter:

Packing in states of matter

Solid:

Solid
• In solid, the molecules are closely packed with no space to move.
• They have definite shape and volume.
• Due to their arrangement, it has a strong intermolecular force and less intermolecular space.
Liquid:

Liquid
• In liquid, the molecules are loosely packed.
• They don't have a definite shape but have a definite volume.
• Due to their arrangement, they have less intermolecular force and more intermolecular space compared to solids.
Gases:

Wind
• In gases, the molecules are very loosely packed.
• They don't have a definite shape and volume.
• Due to their arrangement, it has a very weak intermolecular force and a very large intermolecular space.
States of matter
Example:
Let us see how does hot-air balloon manage to stay in the air:

When a burner heats the air inside a hot-air balloon, it expands. The density of the air inside the balloon decreases as the balloon expands.

As a result, the density of the air inside the balloon is lower than that of the air outside the balloon.

The hot-air balloon will float because of the density difference.