According to the kinetic theory of gases, the translational kinetic energy of an ideal gas is given by where n is the number of moles, R is the gas constant, and T is absolute temperature. A mixture of He (mole weight = 4.003 g mol!1) and Ar (mole weight = 39.95 g mol!1) is placed in a container that is held at a temperature of 295 K. Ek=3/2nRT
(a) Calculate the translational kinetic energy per mole for the He atoms and for the Ar atoms.