Electrochemistry Review

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Vocabulary flashcards covering key terms and equations in electrochemistry.

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8 Terms

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E° cell

E° Red - E° ox.

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Nernst Equation

Describes the dependence of cell potential on concentration. ΔG = -nFE = -nFE° + RT ln(Q); E = E° - (RT/nF)ln(Q)

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Electrolytic Cell

Uses electrical energy to produce a chemical change.

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Equilibrium Constant (K)

Related to the standard cell potential by: ln(K) = (E°(nF))/(RT)

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Concentration Cell

A cell where E°cell = 0V, but Ecell ≠ 0V due to differing concentrations of the same species in the half-cells.

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Standard Reduction Potential (E°)

The measure of the tendency for a chemical species to be reduced. Higher values indicate a greater tendency to be reduced.

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ΔG°

Standard free energy change, related to E° by: ΔG° = -nFE°

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Electrolysis

The process of using electrical energy to drive a non-spontaneous chemical reaction.