Enthalpy of sublimation

The enthalpy of sublimation, or heat of sublimation, is the heat required to change one mole of a substance from solid state to gaseous state at a given combination of temperature and pressure, usually standard temperature and pressure (STP). The heat of sublimation is usually expressed in kJ/mol, although the less customary kJ/kg is also encountered.

Sublimation enthalpiesEdit

symbol substances Sublimation enthalpy (kJ/mol)
Na sodium 108
K potassium 89
Rb rubidium 82
Cs caesium 78
Mg magnesium 150
Ca calcium 192
Sr strontium 164
Ba barium 176
I2 iodine 62.4[1]
C10H8 naphthalene 72.9[1]
CO2 carbon dioxide 25[1]

See alsoEdit


  1. ^ a b c Chickos, James S.; Acree, William E. (2002). "Enthalpies of Sublimation of Organic and Organometallic Compounds. 1910–2001". Journal of Physical and Chemical Reference Data. 31 (2): 537–698. doi:10.1063/1.1475333. ISSN 0047-2689.