title: Behind the Mpemba paradox.
abstract: Mpemba paradox results from hydrogen-bond anomalous relaxation. Heating stretches the O:H nonbond and shortens the H-O bond via Coulomb coupling; cooling reverses this process to emit heat at a rate depending on its initial storage. Skin ultra-low mass density raises the thermal diffusivity and favors outward heat flow from the liquid.
authors.affiliation: Nanyang Technological University ; Singapore.
authors.forename: Chang Qing
authors.initials: CQ
authors.lastname: Sun
keywords: biomolecules; convention; freezing; hydrogen bond; thermal diffusivity