Nernst equation

The Nernst equation is an important formula in electrochemistry that relates the concentration of ions in a solution to the potential difference across a membrane or electrode. The equation is named after German chemist Walther Nernst, who formulated it in 1889. The Nernst equation is given as: E = E° – (RT/nF) * ln(Q) where:…

Electrochemical work

Electrochemical work is the work done by an electrochemical system, which involves the conversion of chemical energy to electrical energy, or vice versa. In an electrochemical cell, the flow of electrons from one electrode to another generates electrical energy, which can be used to do work. The electrochemical work is typically measured in units of…

Standard electrode potentials

Standard electrode potentials (also known as standard reduction potentials) are a measure of the tendency of a chemical species to undergo reduction or oxidation under standard conditions. These potentials are reported relative to the standard hydrogen electrode (SHE), which is assigned a potential of 0.00 volts. Standard electrode potentials are typically represented using the notation…

Electrochemical cells and cell reactions

Electrochemical cells are devices that convert chemical energy into electrical energy or vice versa. They involve a redox (reduction-oxidation) reaction, which occurs at the interface between two electrodes immersed in an electrolyte solution. In an electrochemical cell, there are two half-cells, each consisting of an electrode and an electrolyte. The half-cell where oxidation occurs is…