What is Standard Electrode Potential?
Standard electrode potential, also known as standard reduction potential, is a measure of the tendency of a half-cell to gain electrons and undergo reduction under standard conditions. In this case, the standard hydrogen electrode (SHE) is typically used as a potential reference and it is expressed in volts (V). In simpler terms, standard electrode potentials quantify how likely a species is to gain electrons and be reduced in a redox reaction.
A standard condition may comprise of 25 degrees Celsius, 1 atmosphere pressure, and 1 molar for all the species present in a solution, except the H+ ions which are uniformly present at concentration of 1 molar.
Standard Electrode Potential
Standard electrode potential (E°) is a measure of the tendency of a half-reaction to occur as a reduction at a standard condition. In the context of standard electrode potential, “standard conditions” refer to a set of specific conditions under which the potential is measured. It includes standard concentration of all aqueous species to be 1 mol/L, pressure to be 1 atm and temperature to be 25℃ or 298K.
In this article, we will learn in detail about standard electrode potential, its formula, construction, factors affecting and applications.
Table of Content
- What is Standard Electrode Potential?
- Standard Electrode Potential Formula
- Construction of Standard Electrode Potential
- Difference Between Electrode Potential and Standard Electrode Potential
- Factors Affecting Electrode Potentials
- Standard Electrode Potential Example
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