Oxygen is a colourless, odourless reactive gas, the chemical element of atomic number 8 and the life-supporting component of the air. It is a member of the chalcogen group on the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds. By mass, oxygen is the third-most abundant element in the universe, after hydrogen and helium.
Oxygen – Specific Heat, Latent Heat of Fusion, Latent Heat of Vaporization
Specific heat of Oxygen is 0.92 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 Oxygen is (O2) 0.444 kJ/mol.
Latent Heat of Vaporization of Oxygen is (O2) 6.82 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 Oxygen
|Specific Heat||0.92 J/g K|
|Heat of Fusion||(O2) 0.444 kJ/mol|
|Heat of Vaporization||(O2) 6.82 kJ/mol|
Properties of other elements