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Nernst equation information


In electrochemistry, the Nernst equation is a chemical thermodynamical relationship that permits the calculation of the reduction potential of a reaction (half-cell or full cell reaction) from the standard electrode potential, absolute temperature, the number of electrons involved in the redox reaction, and activities (often approximated by concentrations) of the chemical species undergoing reduction and oxidation respectively. It was named after Walther Nernst, a German physical chemist who formulated the equation.[1][2]

  1. ^ Orna, Mary Virginia; Stock, John (1989). Electrochemistry, past and present. Columbus, OH: American Chemical Society. ISBN 978-0-8412-1572-6. OCLC 19124885.
  2. ^ Wahl (2005). "A Short History of Electrochemistry". Galvanotechtnik. 96 (8): 1820–1828.

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Nernst equation

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In electrochemistry, the Nernst equation is a chemical thermodynamical relationship that permits the calculation of the reduction potential of a reaction...

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Walther Nernst

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1920 Nobel Prize in Chemistry. He is also known for developing the Nernst equation in 1887. He studied physics and mathematics at the universities of...

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Pourbaix diagram

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respect to the standard hydrogen electrode (SHE) as calculated by the Nernst equation. The "H" stands for hydrogen, although other standards may be used...

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Electrochemistry

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chemical reaction producing the voltage. He constructed an equation, known as Nernst equation, which related the voltage of a cell to its properties. In...

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Reduction potential

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global combined equation no longer contains electrons. The E h {\displaystyle E_{h}} and pH of a solution are related by the Nernst equation as commonly represented...

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Standard hydrogen electrode

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lower for more concentrated solutions. As the general form of the Nernst equation at equilibrium is the following: E cell = E cell ⊖ − R T z F ln ⁡ K...

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Gibbs free energy

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the equilibrium constant and reaction quotient for that reaction (Nernst equation), where ΔrG, Gibbs free energy change per mole of reaction, ΔrG°, Gibbs...

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Tafel equation

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as well ". The Tafel equation can be also written as: where n is the number of electrons exchanged, like in the Nernst equation, k is the rate constant...

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List of equations

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Functional equation Functional equation (L-function) Constitutive equation Laws of science Defining equation (physical chemistry) List of equations in classical...

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Goldman equation

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since }}\ln 10\approx 2.303\end{aligned}}} which is the Nernst equation. Goldman's equation seeks to determine the voltage Em across a membrane. A Cartesian...

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PH

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measure pH, respond to activity. The electrode potential, E, follows the Nernst equation for the hydrogen ion, which can be expressed as: E = E 0 + R T F ln...

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Reversal potential

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PMID 5119107. S2CID 34404730. Nernst/Goldman Equation Simulator Nernst Equation Calculator Goldman-Hodgkin-Katz Equation Calculator Electrochemical Driving...

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Gas constant

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in many fundamental equations in the physical sciences, such as the ideal gas law, the Arrhenius equation, and the Nernst equation. The gas constant is...

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Nernst heat theorem

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{\displaystyle \lim _{T\to 0}\Delta S=0} The above equation is a modern statement of the theorem. Nernst often used a form that avoided the concept of entropy...

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Resting potential

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This equation resembles the Nernst equation, but has a term for each permeant ion. Also, z has been inserted into the equation, causing the intracellular...

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Postsynaptic potential

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important equations that can determine membrane potential differences based on ion concentrations are the Nernst Equation and the Goldman Equation. Neurons...

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Boltzmann constant

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voltage is also important in plasmas and electrolyte solutions (e.g. the Nernst equation); in both cases it provides a measure of how much the spatial distribution...

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Voltammetry

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concentration, the applied standard potential can be identified using the Nernst equation. There are three main shapes for voltammograms. The first shape is...

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Electrode potential

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Absolute electrode potential Electric potential Galvani potential Nernst equation Overpotential Potential difference (voltage) Standard electrode potential...

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Galvanic cell

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charged. Actual half-cell potentials must be calculated by using the Nernst equation as the solutes are unlikely to be in their standard states: E half-cell...

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Saturated calomel electrode

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E_{{\ce {Hg2Cl2/Hg, Cl-}}}^{0}=+0.27\ {\ce {V}}.\\\end{cases}}} The Nernst equation for the balanced reaction is: E cell = E 1 2 cathode − E 1 2 anode...

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Membrane potential

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Functions of the Cell Membrane Nernst/Goldman Equation Simulator Nernst Equation Calculator Goldman-Hodgkin-Katz Equation Calculator Electrochemical Driving...

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Lemon battery

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from the cell was reduced as predicted using the Nernst equation for the model. The Nernst equation essentially says how much the voltage drops as more...

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Electrolysis

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the difference of the electrode potentials as calculated using the Nernst equation. Applying additional voltage, referred to as overpotential, can increase...

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