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Cathode

(Oxidation)

XO«-X

solid electrolyte

Y<—YO

(reduction)

Fig. 10.2b Electrolytic cell e

Fig. 10.2b Electrolytic cell

In the third type of operation shown in Fig., 10.2c, all current flow and both half-cell reactions are stopped by placing in the line a potentiometer or an external voltage source that just balances the electric potential produced by reaction (10.1). Because no current flows, neither of the electrodes can be labeled a cathode or an anode. This equilibrium cell provides a method for measuring the standard free-energy changes of the overall cell reaction. To this end, the cell voltage, or electromotice force (EMF), denoted by s, is measured at various cell temperatures.

Getting Started With Solar

Getting Started With Solar

Do we really want the one thing that gives us its resources unconditionally to suffer even more than it is suffering now? Nature, is a part of our being from the earliest human days. We respect Nature and it gives us its bounty, but in the recent past greedy money hungry corporations have made us all so destructive, so wasteful.

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