5) A few atoms of Argon (atomic weight = 40) are released from a storage tank into a room full of air at 300 K. Assume that the Ar atoms have an average energy of (3f2)kT and a mean free path of 0.1 micrometer. Determine the diffusion constant of the Ar gas and the rms displacement of the atoms from their point of origin at 1 second and at 1 hour after their release. Plot a few points of 1' ms (t) to get a feeling fill" the t 1'3 function