dc.contributor.authorZhang, Xi
dc.contributor.authorHuang, Yongli
dc.contributor.authorMa, Zengsheng
dc.contributor.authorZhou, Yichun
dc.contributor.authorZhou, Ji
dc.contributor.authorZheng, Weitao
dc.contributor.authorJiang, Qing
dc.contributor.authorSun, Changqing
dc.identifier.citationZhang, X., Huang, Y., Ma, Z., Zhou, Y., Zhou, J., Zheng, W., et al. (2014). Hydrogen-bond memory and water-skin supersolidity resolving the Mpemba paradox. Physical chemistry chemical physics, 16(42), 22995-23002.en_US
dc.description.abstractThe Mpemba paradox, that is, hotter water freezes faster than colder water, has baffled thinkers like Francis Bacon, René Descartes, and Aristotle since B.C. 350. However, a commonly accepted understanding or theoretical reproduction of this effect remains challenging. Numerical reproduction of observations, shown herewith, confirms that water skin supersolidity [Zhang et al., Phys. Chem. Chem. Phys., DOI: 10.1039/C1034CP02516D] enhances the local thermal diffusivity favoring heat flowing outwardly in the liquid path. Analysis of experimental database reveals that the hydrogen bond (O:H–O) possesses memory to emit energy at a rate depending on its initial storage. Unlike other usual materials that lengthen and soften all bonds when they absorb thermal energy, water performs abnormally under heating to lengthen the O:H nonbond and shorten the H–O covalent bond through inter-oxygen Coulomb coupling [Sun et al., J. Phys. Chem. Lett., 2013, 4, 3238]. Cooling does the opposite to release energy, like releasing a coupled pair of bungees, at a rate of history dependence. Being sensitive to the source volume, skin radiation, and the drain temperature, the Mpemba effect proceeds only in the strictly non-adiabatic ‘source–path–drain’ cycling system for the heat “emission–conduction–dissipation” dynamics with a relaxation time that drops exponentially with the rise of the initial temperature of the liquid source.en_US
dc.format.extent8 p.en_US
dc.relation.ispartofseriesPhysical chemistry chemical physicsen_US
dc.rightsThis article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.en_US
dc.subjectDRNTU::Science::Chemistry::Physical chemistry
dc.titleHydrogen-bond memory and water-skin supersolidity resolving the Mpemba paradoxen_US
dc.typeJournal Article
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen_US
dc.description.versionPublished versionen_US

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