"U_M" . . . "dimensions are wrong" . "http://www.efunda.com/glossary/units/units-molar_energy-joule_per_mole.cfm"^^ . . "\"Molar Energy\" is the total energy contained by a thermodynamic system. The unit is \\(J/mol\\), also expressed as \\(joule/mole\\), or \\(joules per mole\\). This unit is commonly used in the SI unit system. The quantity has the dimension of \\(M \\cdot L^2 \\cdot T^{-2} \\cdot N^{-1}\\) where \\(M\\) is mass, \\(L\\) is length, \\(T\\) is time, and \\(N\\) is amount of substance."^^ . "Molar Energy"@en . . . . "\\(U_m = \\frac{U}{n}\\), where \\(U\\) is internal energy and \\(n\\) is amount of substance."^^ . "http://www.iso.org/iso/catalogue_detail?csnumber=31894"^^ .