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Nernst equation

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Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310011
EISBN: 978-1-62708-286-0
... theory as it pertains to corrosion resistance of stainless steels. The discussion provides an overview of electrochemical reactions, Faraday's law, the Nernst equation, galvanic versus electrochemical cells, corrosion tendency, and Pourbaix diagrams. corrosion stainless steel corrosion prevention...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2000
DOI: 10.31399/asm.tb.fec.t65940087
EISBN: 978-1-62708-302-7
...) η = E ( i ) − E ′ where E(i) is the potential represented as a function of current density, i, and E′ is the equilibrium half-cell potential, which would exist with no current and can be calculated from the Nernst half-cell equation. In 1905, Tafel observed that for a number...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910049
EISBN: 978-1-62708-250-1
...+ ) plus two electrons (2 e − ) can be reduced to metallic iron (Fe). The Nernst equation, which is useful for determining the effect of ionic concentration on the electrode potential for such a reaction, is expressed as the following: (Eq 1) E = E 0 − R T n F ln ( red ) ( ox...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2000
DOI: 10.31399/asm.tb.fec.t65940023
EISBN: 978-1-62708-302-7
... and the RHE would be the metal, M. The Nernst Equation: Effect of Concentration on Half-Cell Potential <xref ref-type="bibr" rid="t65940023-ref3">(Ref 3,</xref> <xref ref-type="bibr" rid="t65940023-ref6">6)</xref> Consider again the generalized electrochemical reaction: (Eq 2.62) xM + mX x...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310019
EISBN: 978-1-62708-286-0
...) O 2 + 2 H 2 O + 4 e − → 4 OH − and (Eq 4) 2 Fe ( s ) → 2 Fe 2 + + 4 e − The Nernst equation predicts an open circuit potential of, E rxn = E O 2 /OH - – E Fe 2+ /Fe where E O 2 / OH...
Book Chapter

By L. L. Sparks
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1983
DOI: 10.31399/asm.tb.mlt.t62860047
EISBN: 978-1-62708-348-5
... temperature change of the system. It has been studied for more than a century. Diverse needs have provided the impetus for this continuous study and development; specific heat experiments were used to verify Nernst’s statement of the third law of thermodynamics (entropy change approaches zero as temperature...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.9781627082501
EISBN: 978-1-62708-250-1
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910497
EISBN: 978-1-62708-250-1
... electrochemical reactions are occur- ring. Also called galvanic couple potential. N Nernst equation. An equation that expresses the exact electromotive force of a cell in terms of the activities of products and reactants of the cell. Nernst layer. The diffusion layer at the surface of an electrode in which...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2000
DOI: 10.31399/asm.tb.fec.t65940127
EISBN: 978-1-62708-302-7
... – E′ M calculated by application of the Nernst equation) and the polarization behaviors of the anodic and cathodic reactions. The current distribution parameters are the relative geometries of the anodic and cathodic areas, the specific resistivity of the solution and any other resistances to current...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.9781627082822
EISBN: 978-1-62708-282-2
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030380
EISBN: 978-1-62708-282-2
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2000
DOI: 10.31399/asm.tb.fec.t65940233
EISBN: 978-1-62708-302-7
... in Table 6.1 (the section “Examples of Half-Cell Reactions and Nernst-Equation Calculations” in Chapter 2 provides discussions of half-cell-potential calculations). There are a number of factors that contribute to the selection of components and to the design of a satisfactory reference half cell...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420041
EISBN: 978-1-62708-310-2
... in entropy. For processes taking place in a system in equilibrium with its surroundings, the change in entropy is defined as: (Eq 3.3) d S ≡ δ Q T ≡ d E + P d V T Third Law A principle advanced by Theodore Richards, Walter Nernst, Max Planck, and others, often called...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2000
DOI: 10.31399/asm.tb.fec.9781627083027
EISBN: 978-1-62708-302-7
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2004
DOI: 10.31399/asm.tb.ps.t62440001
EISBN: 978-1-62708-352-2
... between the liquid and vapor, γ SV is the surface tension between solid and vapor, and θ is the contact angle of the liquid droplet on the solid surface. Equation 1.1 , known as the wetting or Young’s equation, shows that θ &lt; 90° corresponds to the condition γ SV &gt; γ SL . This imbalance...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.pb.t51230001
EISBN: 978-1-62708-351-5
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2004
DOI: 10.31399/asm.tb.ps.9781627083522
EISBN: 978-1-62708-352-2
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.9781627082860
EISBN: 978-1-62708-286-0
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1983
DOI: 10.31399/asm.tb.mlt.9781627083485
EISBN: 978-1-62708-348-5
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2000
DOI: 10.31399/asm.tb.fec.t65940271
EISBN: 978-1-62708-302-7