What is the definition of oxidation in a redox reaction?
Oxidation is the process in which an atom or ion loses electrons.
What is reduction in a redox reaction?
Reduction is the process in which an atom or ion gains electrons.
What does the electrode potential indicate?
The electrode potential indicates the tendency of a substance to gain or lose electrons, with a more positive value meaning a greater tendency to gain electrons.
What is the role of a salt bridge in an electrochemical cell?
A salt bridge allows the flow of ions between the half-cells, maintaining electrical neutrality and completing the circuit in an electrochemical cell.
What is the standard electrode potential for the hydrogen ion (H⁺) half-cell?
The standard electrode potential for the hydrogen ion half-cell is defined as 0 V, and it is used as a reference for measuring other electrode potentials.
What is a galvanic cell?
A galvanic cell is an electrochemical cell that generates electrical energy from spontaneous redox reactions.
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What is the Nernst equation used for?
The Nernst equation is used to calculate the cell potential of an electrochemical cell under non-standard conditions.
What is the purpose of electrolysis?
Electrolysis is the process of using electrical energy to drive a non-spontaneous chemical reaction.
What is the relationship between the cell potential and the spontaneity of a reaction?
A positive cell potential indicates a spontaneous reaction, while a negative cell potential indicates a non-spontaneous reaction.