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.
Some organic compounds melt through mesophases, states of partial order between solid and liquid.
Other articles related to "melting":
... Nanoparticle shape impacts the melting point of a nanoparticle ... Facets, edges and deviations from a perfect sphere all change the magnitude of melting point depression ... Equation 7 gives a general shape corrected formula for the theoretical melting point of a nanoparticle based on its size and shape ...
... In genetics, melting DNA means to separate the double-stranded DNA into two single strands by heating or the use of chemical agents, cf ...
... The specific melting process for nanoparticles is currently unknown ... accepts several mechanisms as possible models of nanoparticle melting ... of the corresponding models effectively match experimental data for melting of nanoparticles ...
... analysis via SYBR Green, other double-strand specific dyes, or probe-based melting curve analysis has become nearly ubiquitous ... Without probes, amplicon melting (melting and analysis of the entire PCR product) was not generally successful at finding single base variants through melting profiles ... instruments and advanced dyes, amplicon melting analysis of one base variants is now possible with several commercially available instruments ...
... glaciological literature to refer to the melting point of ice under pressure ... increases in the downward direction, the melting temperature of ice decreases ... This pressure melting point can reach values many degrees below 0°C ...
Famous quotes containing the word melting:
“O ruddier than the cherry,
O sweeter than the berry,
O Nymph more bright
Than moonshine night,
Like kidlings blithe and merry.
Ripe as the melting cluster,
No lily has such lustre,
Yet hard to tame,
As raging flame,
And fierce as storms that bluster.”
—John Gay (16851732)
“He hath a tear for pity, and a hand
Open as day for melting charity.”
—William Shakespeare (15641616)
“Of course Im a black writer.... Im not just a black writer, but categories like black writer, woman writer and Latin American writer arent marginal anymore. We have to acknowledge that the thing we call literature is more pluralistic now, just as society ought to be. The melting pot never worked. We ought to be able to accept on equal terms everybody from the Hassidim to Walter Lippmann, from the Rastafarians to Ralph Bunche.”
—Toni Morrison (b. 1931)