87.10 Application of EMF and electrode potential 7.10.3 Determination of the reaction direction Application of Pourbaix diagram Corrosion with hydrogen evolution Corrosion with oxygen absorption > Passivation? 1.5 C Cu(oh Surface conversion? 1.0 CuO, 2 Electrochemical synthesis? 0.5 CuO 0.0 Cu 02468101214Application of Pourbaix diagram Cu2+ Cu(OH)2 Cu pH  / V 0 2 4 6 8 10 12 14 CuO2 2− Cu2O 0.0 0.5 1.0 1.5 7.10.3 Determination of the reaction direction Corrosion with hydrogen evolution Corrosion with oxygen absorption Passivation? Surface conversion? Electrochemical synthesis? §7.10 Application of EMF and electrode potential