Notes on Electrode Potential versus pH

2 v the potential difference due to the oxygen atoms

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Unformatted text preview: that corrosion is likely to occur at a pH of 2 with Hydrogen gas being the oxidizing agent. The reaction is as follows: 2H+ + 2e- - > H2 Cr - > Cr2+ + 2e- At a pH of 2, in the presence of Oxygen atoms, the electrode potential of the cathode is equal to approximately 1.2 V. The potential difference due to the Oxygen atoms has a greater driving force than the potential difference due to Hydrogen atoms. This implies that corrosion is likely to occur at a pH of 2 with Oxygen gas being the oxidizing agent. However, it is possible that Chromium...
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This document was uploaded on 03/06/2014 for the course MECH 812 at Queens University.

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