Three moles of a krypton gas are at a temperature of 360 K. Calculate the average kinetic energy per atom, the root-mean-square (rms) speed of atoms in the gas, and the internal energy of the gas.

a. the average kinetic energy per atom (in J)

b. the root-mean-square (rms) speed (in m/s) of atoms in the gas

c. the internal energy of the gas (in J)