Modified Arrhenius Equation in Materials Science, Chemistry and Biology

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60162694%3AG43__%2F21%3A00557790" target="_blank" >RIV/60162694:G43__/21:00557790 - isvavai.cz</a>
Result on the web
<a href="https://www.mdpi.com/1420-3049/26/23/7162/htm" target="_blank" >https://www.mdpi.com/1420-3049/26/23/7162/htm</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/molecules26237162" target="_blank" >10.3390/molecules26237162</a>

Result language
angličtina
Original language name
Modified Arrhenius Equation in Materials Science, Chemistry and Biology
Original language description
The Arrhenius plot (logarithmic plot vs. inverse temperature) is represented by a straight line if the Arrhenius equation holds. A curved Arrhenius plot (mostly concave) is usually described phenomenologically, often using polynomials of T or 1/T. Many modifications of the Arrhenius equation based on different models have also been published, which fit the experimental data better or worse. This paper proposes two solutions for the concave-curved Arrhenius plot. The first is based on consecutive A→B→C reaction with rate constants k1 ≪ k2 at higher temperatures and k1 ≫ k2 (or at least k1 > k2) at lower temperatures. The second is based on the substitution of the temperature T the by temperature difference T − T0 in the Arrhenius equation, where T0 is the maximum temperature at which the Arrheniusprocess under study does not yet occur.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10400 - Chemical sciences

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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