One mole of an ideal gas with a volume of 6.67 L and a pressure of 1.50 atm is contained in a vessel with a movable piston. The external pressure is suddenly increased to 5.00 atm and the gas is compressed isothermally (T = 122 K). Calculate ΔE, ΔH, ΔS, w, q, ΔSsurr, ΔSuniv, and ΔG.