(a) Demonstrate that the CPR is related to the corrosion current density i (A/cm2) through the expression
CPR = KAi/nρ (17.38)
where K is a constant, A is the atomic weight of the metal experiencing corrosion, n is the number of electrons associated with the ionization of each metal atom, and ρ is the density of the metal.
(b) Calculate the value of the constant K for the CPR in mpy and i in μA/cm2 (10-6 A/cm2).