Melting
Melting, or fusion, is a physical process that results in the phase transition of a substance from a solid to a liquid. The internal energy of a substance is increased, typically by the application of heat or pressure, resulting in a rise of its temperature to the melting point, at which the ordering of ionic or molecular entities in the solid breaks down to a less ordered state and the solid liquefies. An object that has melted completely is molten. Substances in the molten state generally have reduced viscosity with elevated temperature; an exception to this maxim is the element sulfur, whose viscosity increases to a point due to polymerization and then decreases with higher temperatures in its molten state.
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Famous quotes containing the word melting:
“Between melting and freezing
The soul’s sap quivers.”
—T.S. (Thomas Stearns)
“He hath a tear for pity, and a hand
Open as day for melting charity.”
—William Shakespeare (1564–1616)
“Since to the awe of thy imperious wit
Our troublesome language bends, made only fit
With her tough thick-ribbed hoops to gird about
Thy giant fancy, which had proved too stout
For their soft melting phrases.”
—Thomas Carew (1589–1639)