A sealed cubical container 18.0 cm on a side contains. gas with two times Avogadro's number of xenon atoms at a temperature of 30.0C. (a) Find the internal energy (in J) of the gas. 7254.63 X J (b) The total translational kinetic energy (in J) of the gas. (c) Calculate the average kinetic energy (in J) per atom. - 1/ (+/ ) ( 1/2mv ) t to calculate the gas pressure (in Pa). Pa (d) Use P = (e) Calculate the gas pressure (in Pa) using the ideal gas law (PV = nRT). Pa