Nernst equation


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Nernst equation

[′nernst i‚kwā·zhən]
(physical chemistry)
The relationship showing that the electromotive force developed by a dry cell is determined by the activities of the reacting species, the temperature of the reaction, and the standard free-energy change of the overall reaction.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
We will now discuss Nernst Equation which plays a very important role in corrosion service.
and yet the teaching of this science rarely goes beyond redox reactions and the Nernst Equation in General Chemistry.
ORP is a thermodynamic parameter and, because of the complicated nature of biological systems, it is not appropriate to simply use the thermodynamic conditions of the Nernst equation to calculate ORP.
They are determined uniquely by the Nernst equation. [g.sub.Na] = 120.0 mS/[cm.sup.2], [g.sub.K] = 36.0 mS/[cm.sup.2], [g.sub.l] = 0.3 mS/[cm.sup.2] represent the maximum conductance of the corresponding ionic currents.
Solution pH influences the synthesis of the nickel nanoparticles as seen in the Nernst equation (1).
Fluoride ion-selective electrodes respond to the fluoride concentration in a non-linear relationship following the Nernst Equation [18].
The basis of which is the use of Nernst equation to describe the concentration of redox species in terms of the potential at the cell's electrode under equilibrium condition.
The oxidation potentials and electrodeposition rate can be altered by altering the ion concentrations, such as [Ag.sup.+] and [Co.sup.2+], according to the Nernst equation and kinetic theory as follows:
This is done with knowledge of the kinetics of both hydrogen reduction and evolution on platinum catalysts, using the Nernst equation. This provides a valid estimate of the equilibrium potential of a hydrogen concentration cell.
To calculate which protein is more likely to end up with the NO 'hot potato,' caspases or XIAP, the researchers created a new version of the Nernst equation - a 19th century mathematical equation taught in every general chemistry class.
The concentration of the hydrogene ions of an unknown pH solution is expressed ideally with the Nernst equation (International Organization for Standardization, 1992):
Nernst equation ensures that redox reaction between the oxidized centers and the counter-ions will be completed instantaneously to reach the equilibrium as long as the voltage scan is slow.