Daniell element conditions

For the Daniell element in Fig. 3, a potential difference A is obtained by calculation from the values in Fig. 5 according to Eq. (11) under equilibrum conditions the potential difference corresponds to the terminal voltage of the cell. 

For the Daniell element under standard conditions (T=298K),... 

The Cu2j"/Cu reduction potential ( + 0.34 V) represents the positive electrode of the Daniell cell (see Sections 4.1 and 7.5.10). All three members of the group are insoluble in dilute acid solutions. In alkaline conditions the solid compounds Cu(OH)2, Cu20 and Ag20 represent the oxidation states of the elements. 

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