The oxidation of copper(I) oxide, Cu2O(s), to copper(II) oxide, CuO(s), is an exothermic process. 2Cu2O(s)+O2(g)4CuO(s) The change in enthalpy upon reaction of 32.34gCu2O(s) is 33.00kJ. Calculate the work, w, and energy change, Urxn, when 32.34gCu2O(s) is oxidized at a constant pressure of 1.00 bar and a constant temperature of 25C. Note that Erxn is sometimes used as the symbol for energy change instead of Urxn. w= Urxn