Chapter 3
An Introduction to Materials Engineering and Science for Chemical and Materials Engineers · 2 exercises
Problem 1
One-half of an electrochemical cell consists of a pure nickel electrode in a solution of \(\mathrm{Ni}^{2+}\) ions; the other is a cadmium electrode immersed in a \(\mathrm{Cd}^{2+}\) solution. If the cell is a standard one, write the spontaneous overall reaction and calculate the voltage that is generated.
5 step solution
Problem 2
A piece of corroded steel plate was found in a submerged ocean vessel. It was estimated that the original area of the plate was \(64.5 \mathrm{~cm}^{2}\) and that approximately \(2.6 \mathrm{~kg}\) had corroded away during the submersion. Assuming a corrosion penetration rate of 200 mpy for this alloy in seawater, estimate the time of submersion in years.
5 step solution