Concept explainers
A concentration cell has different concentrations of the same ions, but because of the different concentrations there is a very small voltage between the cells. This effect is especially problematic for corrosion. Consider the following overall reaction, which is assumed to occur in the presence of metallic iron:
(a) What is
(b) What is the expression for Q?
(c) What is
(d) Should concentration cells be considered another type of colligative property? Explain your answer.
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Physical Chemistry
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