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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.

Solar Panel Basics

Solar Panel Basics

Global warming is a huge problem which will significantly affect every country in the world. Many people all over the world are trying to do whatever they can to help combat the effects of global warming. One of the ways that people can fight global warming is to reduce their dependence on non-renewable energy sources like oil and petroleum based products.

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