Corrosion is an electrochemical phenomenon, explain
When a metal surface is exposed to a wet environment, due to the presence of moisture or air oxidation takes place. 5. Calculate the pH of following cell: Pt,H2(1atm)|H+(H2SO4)Pt,H2(1atm)|H+(H2SO4), if its electrode potential is 0.03V0.03V . Ans: Nernst equation for the given cell, EH2/H+=E0H2/H+−0.05912log[H+]2PH2EH2/H+=EH2/H+0−0.05912log[H+]2PH2 0.03=0.0−0.0591log[H+]10.03=0.0−0.0591log[H+]1 0.03=0.0591pH0.03=0.0591pH pH=0.030.0591=0.5076pH=0.030.0591=0.5076
