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Melting Definition in Chemistry

Melting Definition in Chemistry

Melting is the process by which a substance changes from the solid phase to the liquid phase. Melting is also known as fusion, although this term has several meanings. Melting occurs when the internal energy of a solid increases, usually through the application of heat or pressure, such that the molecules become less ordered.

Example

In ice cube melting into liquid water is a familiar example of the process. Another common example is melting butter in a hot pan.