In a Daniell cell, what happens to the current flow if an external opposing potential () slightly greater than 1.1 V is applied?.
The current flows in the opposite direction (from Zn to Cu), and the cell functions as an electrolytic cell (non-spontaneous reaction occurs). Now reduction happens in Zn half cell and oxidation in Cu half cell.
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Start Practicing NowWhat is the sign of Gibbs Free Energy () for a cell reaction to be spontaneous?.
Why is the Standard Hydrogen Electrode (SHE) potential taken as zero?.
Which material is used as the inert electrode in a Standard Hydrogen Electrode (SHE)?.
What defines an Inert Electrode? Give 2 common examples used in JEE problems.
In the electrochemical series, if is highly negative, what does it indicate about the reducing power of the metal?.