The amount of heat necessary to transform a solid at a given temperature into a liquid of the same temperature, or the amount of heat needed to be removed from a liquid of a given temperature to transform it into a solid of the same temperature.
is the amount of energy absorbed during melting and is equivalent to the amount of energy released during freezing.
the amount of heat required to cause a change of phase from solid to liquid, or the heat released when the phase change is from liquid to solid. In the case of melting snow, the phase change from ice to water requires a significant amount of heat—160 times that required to raise the temperature of the same amount of ice by just 1°C. Until the required amount of heat is supplied to completely melt all of the ice being considered, no further increase in temperature will occur.
A characteristic amount of heat that is absorbed or given off while a standard amount of a material changes state between solid and liquid, without changing the temperature.
The heat that changes the physical state of a substance from a liquid to a solid, or from a solid to a liquid; no temperature change is shown by a thermometer during the conversion process.
The heat involved when when a solid changes to a liquid (or vice-versa).
The amount of heat required to melt all ice (or freeze all pore water) in a unit mass of soil or rock. For pure water this quantity is 334 J g-1.
