A sealed cubical container 19.0 cm on a side contains a gas with three times Avogadro's number of krypton atoms at a temperature of 19.0°C. HINT (a) Find the internal energy (in J) of the gas. J (b) The total translational kinetic energy (in J) of the gas. J (c) Calculate the average kinetic energy (in J) per atom. J (d) Use P = 23 NV 12 mv2 to calculate the gas pressure (in Pa). Pa (e) Calculate the gas pressure (in Pa) using the ideal gas law (PV = nRT). Pa