Horvath Practice Problems 114

Horvath Practice Problems 114 - no work can be extracted....

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29 ELECTROCHEMICAL CELLS We now consider the example of the Daniell cell. The reaction Zn(s) + Cu 2+ (aq) Cu(s) + Zn 2+ (29.1) will occur spontaneously when mixed in a beaker. During the reaction electrons are transferred and the system moves to a lower energy state. However, all of the chemical energy evolved is lost as heat and
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Unformatted text preview: no work can be extracted. In order to get usable energy from this reaction one must sep-arate the half reactions Cu 2+ (aq) + 2 e Cu(s) (29.2) and Zn(s) Zn 2+ + 2 e (29.3) into two solutions as shown below ELECTROCHEMICAL CELLS 113...
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