As an element, phosphorus exists in two major forms—white phosphorus and red phosphorus—but because it is highly reactive, phosphorus is never found as a free element on Earth. At 0.099%, phosphorus is the most abundant pnictogen in the Earth’s crust.
Phosphorus – Specific Heat, Latent Heat of Fusion, Latent Heat of Vaporization
Specific heat of Phosphorus is 0.77 J/g K.
Heat capacity is an extensive property of matter, meaning it is proportional to the size of the system. Heat capacity C has the unit of energy per degree or energy per kelvin. When expressing the same phenomenon as an intensive property, the heat capacity is divided by the amount of substance, mass, or volume, thus the quantity is independent of the size or extent of the sample.
Latent Heat of Fusion of Phosphorus is 0.657 kJ/mol.
Latent Heat of Vaporization of Phosphorus is 51.9 kJ/mol.
Latent heat is the amount of heat added to or removed from a substance to produce a change in phase. This energy breaks down the intermolecular attractive forces, and also must provide the energy necessary to expand the gas (the pΔV work). When latent heat is added, no temperature change occurs. The enthalpy of vaporization is a function of the pressure at which that transformation takes place.
See also: Mechanical Properties of Phosphorus
|Specific Heat||0.77 J/g K|
|Heat of Fusion||0.657 kJ/mol|
|Heat of Vaporization||51.9 kJ/mol|
Properties of other elements