text: RT is the product of the molar gas constant, R, and the temperature, T. This product is used in physics and chemistry as a scaling factor for energy values in macroscopic scale (sometimes it is used as a pseudo-unit of energy), as many processes and phenomena depend not on the energy alone, but on the ratio of energy and RT, i.e. E/RT. The SI units for RT are joules per mole (J/mol).
  It differs from kT only by a factor of the Avogadro constant, N. Its dimension is energy or MLT, expressed in SI units as joules (J):
  :kT = RT/N