Question

Please solve problem 5- (a) and (b)

roblem 5. (10 pt) We want to protect an unpainted Zn pipe buried in earth from corrosion b cathodic protection method. using Reactione Standard Atomic Atomic Weight Potential (V Number (/cm2 8.94 +0.340 0.440 0.763 1.662 2.363 29- 26- 30- 13 26.982 1224.31 amu) 63.55. 55.85 65.41 7.87 1.74 (a) (Spt) Consulting the table for standard reduction potential, justify how you would protect it a d calculate the voltage difference between the cathode and anode, assuming no corrosion is observed. (b) (Spt) Now, unfortunately, somfe corrosion is observed. The current between the cathode and anode is 5 HA (constant) After 30 days, how much of your protecting material has been lost in grams? Note: In all your cases, assume standard conditions. (Faraday's constant F-96500 C/mol

Answer 1