ELECTRO CHEMISTRY Lecture Notes - Lecture 3: Standard Electrode Potential, Standard Hydrogen Electrode, Electrochemistry
2 Mar 2023
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Document Summary
Electrode potentials, also known as half-cell potentials, are a measure of the tendency of an electrode to undergo oxidation or reduction. In electrochemistry, electrode potentials are used to determine the feasibility of a redox reaction and to predict the direction of electron flow. In this study note, we will provide a detailed overview of electrode potentials, including their definition, measurement, and applications in electrochemistry. An electrode potential is the potential difference that exists between an electrode and a solution in which it is immersed. Electrode potentials can be measured using a standard electrode potential cell, which consists of two half-cells connected by a salt bridge. Each half-cell contains an electrode and a solution of a specific concentration. The electrode potential of one half-cell is measured relative to the other half-cell using a voltmeter. The standard electrode potential is determined by measuring the electrode potential under standard conditions (25 c, 1 atm pressure, and 1 m concentration).
