thermodynamics, the standard enthalpy of formation or standard heat of formation of a compound is the change of enthalpy during the formation of 1 mole of the substance...

standard enthalpy of reaction Δ H reaction ⊖ {\displaystyle \Delta H_{\text{reaction}}^{\ominus }} is related to the standard enthalpy of formation Δ...

Enthalpy (/ˈɛnθəlpi/ ) is the sum of a thermodynamic system's internal energy and the product of its pressure and volume. It is a state function in thermodynamics...

of Chemistry and Physics and the NIST JANAF tables. The NIST Chemistry WebBook (see link below) is an online resource that contains standard enthalpy...

elemental metals, it is also equal to the standard enthalpy of formation of the gaseous metal atoms. The heat of sublimation is usually expressed in kJ/mol...

salt. It is a special case of the enthalpy of reaction. It is defined as the energy released with the formation of 1 mole of water. When a reaction is...

compilation of standard enthalpies of formation, which may be used to predict the enthalpy change in complex synthesis. Hess’ law states that the change of enthalpy...

stable than the thermodynamically stable black phosphorus. The standard enthalpy of formation of red phosphorus is −17.6 kJ/mol. Red phosphorus is kinetically...

enthalpy, entropy, Gibbs free energy, and for many other material standards. The standard enthalpy change of formation for an element in its standard...

energy of the system H {\textstyle H} is the enthalpy of the system S {\textstyle S} is the entropy of the system T {\textstyle T} is the temperature of the...