A magnetic field of  2 T is applied to a paramagnetic gas. The atoms of the gas have magnetic dipole moment of 4.5 × 10-23 J/T. At what temperature, will the mean translation kinetic energy kinetic energy of an atom of the gas be equal to the energy required to change the alignment of atom’s magnetic dipole form antiparallel to parallel (to the magnetic field) (Boltzmann constant = 1.38 × 10-23 J/K)