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Temperature compensation in the oscillatory bray reaction
KTH, School of Chemical Science and Engineering (CHE), Chemistry. University of Debrecen, Hungary.
2005 (English)In: Journal of Physical Chemistry A, ISSN 1089-5639, E-ISSN 1520-5215, Vol. 109, no 45, 10302-10306 p.Article in journal (Refereed) Published
Abstract [en]

The influence of temperature on the oscillatory frequency of the hydrogen peroxide-iodate ion reaction is found to be two-sided: (i) the period length decreases with increasing temperature in most of the instances studied, (ii) or in some cases an opposite change is observed. A temperature-independent period length (temperature compensation) is also discovered experimentally in a rather wide temperature interval at a narrow concentration range of reactants both in a batch configuration and under flow conditions. A simple model was considered to simulate this behavior. Opposing effects of the composite reactions of the model on the calculated period length with changing temperature are shown to be responsible for temperature compensation or overcompensation.

Place, publisher, year, edition, pages
2005. Vol. 109, no 45, 10302-10306 p.
Keyword [en]
Computer simulation, Concentration (process), Hydrogen peroxide, Natural frequencies, Oscillations, Temperature control, Composite reactions, Oscillatory bray reaction, Period length, Temperature compensation, Reaction kinetics
National Category
Physical Chemistry
URN: urn:nbn:se:kth:diva-156578DOI: 10.1021/jp0538159ISI: 000233280300018ScopusID: 2-s2.0-28144451843OAI: diva2:767213

QC 20141201

Available from: 2014-12-01 Created: 2014-12-01 Last updated: 2014-12-01Bibliographically approved

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Hussami, Linda Lejla
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