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Enthalpy of sublimation Sublimation enthalpies See also Navigation menu

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 enthalpies

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
C10H8	naphthalene	72.9
CO2	carbon dioxide	25

See also

• Heat


• Sublimation (chemistry)


• Phase transition