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Change of state of matter

Matter change from one state to another. Solid to liquid in the melting process. Liquid to gas in the evaporation process and etc... ... Find out more about what happened in the molecular level of the substances during change of state.

State of Matter	Arrangement of particles	Movement of particles
Solid	Closely packed together and usually in a regular pattern. Thus resulting in a high density of solid.	Vibrate about fixed positions, held together by strong molecular bonds. Thus resulting in fixed shapes and volume.
Liquid	Packed in clusters with particles slightly further apart to that of solid. Thus resulting in high density of liquid.	Free to move about between clusters but confined within the vessel containing it. This is due to the strong attractive force between them. Thus resulting in fixed volumes but no fixed shapes. shapes depend on the containers holding it.
Gas	Space very far apart one another. It occupy any available space. thus resulting in low density.	Travel at very high speed, random movement. Little or negligible attractive forces between them. Thus resulting no fixed shape and volume and high highly compressible.

Change of states of Matter

Melting - Matter changes from solid to liquid state.

Freezing - Matter changes from liquid to solid state.

Boiling - Matter changes from liquid to gaseous state.

Condensation - Matter changes from gaseous to liquid state.

Sublimation - Matter changes from solid to gaseous state. Conversely, it is also true.