CBSE · Class 12 · Chemistry · ElectrochemistryWhat is standard electrode potential?

Standard electrode potential is formally defined as the potential of a given half-cell measured specifically under standard thermodynamic conditions. These strictly defined conditions include a temperature of 298 Kelvin, a molar concentration of exactly one molar for all participating dissolved aqueous ions, and a partial pressure of precisely one bar for any gases involved in the electrochemical reaction. This fundamental parameter provides a reliable quantitative measure of the tendency of a specific chemical species to gain or lose electrons relative to the standard hydrogen electrode.