J/mol

joule per mole

Molar energyexact by definition

The joule per mole is the coherent SI unit of molar energy, used for enthalpies of reaction and formation, activation energies, and the gas constant R = 8.314 J/(mol·K). Its factor of 1 is exact. Most chemical energies are large in this unit, so kJ/mol is more common in practice.

1 J/mol 0.001 kJ/mol