Enthalpy of formation


(in the ideal gas state at a temperature of 25 °C)
 Inorganic substances:

     Δhform =   J.mol-1
     Δhform =   J.kg-1

 Mr = kg.mol-1

 Organic substances:

    Δhform =   J.mol-1
    Δhform =   J.kg-1

 Mr = kg.mol-1

 Note: