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OpenStudy (anonymous):

The oxidation of copper(I) oxide, Cu2O(s), to copper(II) oxide, CuO(s), is an exothermic process, 2Cu2O(s) + O2 (g)= 4CuO The change in enthalpy upon reaction of 15.44 g of Cu2O(s) is -15.75 kJ. Calculate the work, w, and energy change, ΔUrxn, when 15.44 g of Cu2O(s) is oxidized at a constant pressure of 1.00 bar and a constant temperature of 25°C.

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