debye–hückel equation wikipedia - EAS
Debye–Hückel theory – Wikipedia The result has the form of the Helmholtz equation. This equation applies to electrolytes with equal numbers of ions of each charge.Author: JoJom FebeiCountry: LuxembourgGenre: Spiritualmcgehee.cc/derivation-of-debye-huckel-onsager-equation-13/- People also ask
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See all on Wikipediahttps://en.wikipedia.org/wiki/Debye–Hückel_equationIn order to calculate the activity $${\displaystyle a_{C}}$$ of an ion C in a solution, one must know the concentration and the activity coefficient: $${\displaystyle a_{C}=\gamma {\frac {[C]}{[C^{\ominus }]}},}$$ where $${\displaystyle \gamma }$$ is the activity coefficient of C, $${\displaystyle
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See moreThe chemists Peter Debye and Erich Hückel noticed that solutions that contain ionic solutes do not behave ideally even at very low concentrations. So, while the concentration of the solutes is fundamental to the
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See moreThe English title of the article is "On the Theory of Electrolytes. I. Freezing Point Depression and Related Phenomena". It was originally published in 1923 in volume 24 of a German-language
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See moreThe differential equation is ready for solution (as stated above, the equation only holds for low concentrations):
Using the Buckingham π theorem on this problem results in the following dimensionless groups:
is called the reduced...
See moreTo verify the validity of the Debye–Hückel theory, many experimental ways have been tried, measuring the activity coefficients: the problem is that we need to go towards very high dilutions. Typical examples are: measurements of vapour pressure, freezing point,
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See more• Strong electrolyte
• Weak electrolyte
• Ionic atmosphere
• Debye–Hückel theory
• Poisson–Boltzmann equation...
See more1. ^
2. ^ The Collected Papers of Peter J. W. Debye. New York, New York: Interscience Publishers, Inc. 1954.
3. ^ P. Debye and E. Hückel (1923). "Zur Theorie der Elektrolyte. I. Gefrierpunktserniedrigung und verwandte Erscheinungen". Physikalische Zeitschrift....
See moreA number of approaches have been proposed to extend the validity of the law to concentration ranges as commonly encountered in chemistry
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See moreWikipedia text under CC-BY-SA licenseWas this helpful?Thanks! Give more feedback- https://en.wikipedia.org/wiki/Debye–Hückel_theory
The Debye–Hückel theory was proposed by Peter Debye and Erich Hückel as a theoretical explanation for departures from ideality in solutions of electrolytes and plasmas. It is a linearized Poisson–Boltzmann model, which assumes an extremely simplified model of electrolyte solution but nevertheless gave accurate predictions of mean activity coefficients for ions in dilute solution. The Debye–Hückel equationprovides a starting point for modern treatments of non-ideality of el…
Wikipedia · Text under CC-BY-SA license - https://en.wikipedia.org/wiki/Talk:Debye–Hückel_equation
- The unit for A is said to be kg^1/2 * mol^-1/2 but a simple unit analysis will show that it is incompatible with the equation given (which yields m * mol^-1/2).The reference is for the 1998 book of Hamann and Hamnett which I do not own, however the second edition from 2007 does not give this equation explicitly. — Preceding unsigned comment added by Bjodah (talk • contrib…
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- https://en.wikipedia.org/wiki/Debye_length
which also is known as the Debye–Hückel equation: The second term on the right-hand side vanishes for systems that are electrically neutral. The term in parentheses divided by , has the units of an inverse length squared and by dimensional analysis leads to the definition of the characteristic length scale
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Chemistry:Debye–Hückel equation - HandWiki
https://handwiki.org/wiki/Chemistry:Debye–Hückel_equationNov 13, 2021 · The Debye–Hückel limiting law enables one to determine the activity coefficient of an ion in a dilute solution of known ionic strength. The equation is [1] ln. . ( γ i) = − z i 2 q 2 κ 8 π ε r ε 0 k B T = − z i 2 q 3 N A 1 / 2 4 π ( ε r ε 0 k B T) 3 / 2 10 3 I 2 = − A z i 2 I, where.
