The attractive exponent m = 6 is physically justified by the London dispersion force, whereas no justification for a certain value for the repulsive exponent is known. The repulsive steepness parameter n has a significant influence on the modeling of thermodynamic derivative properties, e.g. the compressibility and the speed of sound. Therefore, the Mie potential is a more flexible intermolecular potential than the simpler Lennard-Jones potential.