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NACE CP3 - Chpt 1. Mechanisms of Corrosion Exam study guides Questions With 100% Correct Answers (2024 / 2025) (Verified by Experts)
Corrosion Zone - ANSWER Fe0 -> Fe++ + 2e- (soluble - reaction can keep occuring) Immunity to Passive - ANSWER Fe0 + 2H2O -> Fe(OH)3 + 2H+ + 2e- (insoluble - builds up at the interface) Corrosion to Passive - ANSWER Fe++ + 3H2O -> Fe(OH)3 +3H+ + 1e- More Active (+ or -) - ANSWER Electronegative - Less Noble
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Exam (elaborations)
NACE CP3 - Chpt 1. Mechanisms of Corrosion Exam study guides Questions With 100% Correct Answers (2024 / 2025) (Verified by Experts)
PopularCorrosion Zone - ANSWER Fe0 -> Fe++ + 2e- (soluble - reaction can keep occuring) Immunity to Passive - ANSWER Fe0 + 2H2O -> Fe(OH)3 + 2H+ + 2e- (insoluble - builds up at the interface) Corrosion to Passive - ANSWER Fe++ + 3H2O -> Fe(OH)3 +3H+ + 1eMore Active (+ or -) - ANSWER Electronegative - Less Noble Less Active (+ or -) - ANSWER Electropositive - More Noble
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Exam (elaborations)
NACE CP3 - Chpt 1. Mechanisms of Corrosion Questions & Answers Solved 100% Correct!!
NewNerst Equation - CORRECT ANSWER-A metal electrode potential is a function of the metal ion activity, which is related to metal ion concentration. As metal ion concentration increases (M^n+) the potential becomes more electropositive. At 1 molar solution of metal ions. Em = ....... ln(a^Mn+/a^Mo) Cathode Reaction - CORRECT ANSWER-Reduction Reaction Anode Reaction - CORRECT ANSWER-Oxidation Reaction SHE to CSE - CORRECT ANSWER-+316 mV SHE to SSC (SJ) - CORRECT ANSWER-+256 mV SHE to ZRE -...
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