Galvanic Corrosion and Protection Quiz
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Questions and Answers

What factor affects the rate of galvanic corrosion?

  • Potential Difference (correct)
  • Chemical Composition
  • Surface Area Ratio
  • Temperature Difference

    • What is the anodic reaction in the presence of electrolyte?

  • Zn2+ + 2e- → Zn(s)
  • Zn(s) + 2H+ → Zn2+ + H2(g)
  • Zn(s) → Zn2+ + 2e- (correct)
  • 2H+ + 2e- → H2(g)

    • What happens as the distance between two electrodes increases?

  • The rate of corrosion increases
  • The rate of corrosion decreases (correct)
  • There is no effect on the rate of corrosion
  • The type of corrosion changes

    • What is the cathodic reaction for a neutral or basic medium (pH = 4-10)?

    <p>2H+ + 2e- → H2(g)</p> Signup and view all the answers

    What is the formula for calculating potential difference in a galvanic cell?

    <p>(E° Zn/Cu) = (E° Zn/Zn^2+) + (E° Cu^2+/Cu)</p> Signup and view all the answers

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