Problem: The oxidation of copper(I) oxide, Cu 2O(s), to copper(II) oxide, CuO(s), is an exothermic process. 2CuO2(s) + O2(g) → 4CuO(s) The change in enthalpy upon reaction of 67.68 g of CuO (s) is -69.06 kJ Calculate the work, w, and the energy change, ΔU rxn, when 67.68 g of Cu 2O (s) is oxidized at constant pressure of 1.00 bar and at constant temperature of 25°C?

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The oxidation of copper(I) oxide, Cu 2O(s), to copper(II) oxide, CuO(s), is an exothermic process.

2CuO2(s) + O2(g) → 4CuO(s)

The change in enthalpy upon reaction of 67.68 g of CuO (s) is -69.06 kJ

Calculate the work, w, and the energy change, ΔU rxn, when 67.68 g of Cu 2O (s) is oxidized at constant pressure of 1.00 bar and at constant temperature of 25°C?

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