The thickness of the metal that is corroded in 210 days.
Answer to Problem 54AAP
The thickness of the metal that is corroded in 210 days is
Explanation of Solution
Write the expression for corrosion rate.
Here, the corrosion rate is
The current density is expressed as,
Substitute
Write the formula to calculate the corrosion depth.
Here, the corrosion mass is
Conclusion:
Refer Table 13.1, “Standard electrode potentials at 25 °C”.
The anodic reaction of zinc is as follows:
Here, the number of electrons produced is,
Refer Figure 2.3, “Periodic Table of Elements”
The atomic mass of zinc is,
Substitute
The density of the zinc is
Substitute
Thus, the thickness of the metal that is corroded in 210 days is
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Chapter 13 Solutions
Foundations of Materials Science and Engineering
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