Thermodynamic Properties of Superheated Water Deduced from Brillouin Scattering Measurements
To test any nucleation theory in liquid, it is necessary to know properties of the liquids in the metastable state. We present here measurements of the sound velocity obtained by Brillouin light scattering in superheated and supercooled water. We give a fitting of the sound velocity data versus temperature by means of a fourth degree polynomial. The isothermal compressibility as deduced from hypersound velocity is fitted by a critical law in the superheating state. Finally we deduce the specific heat at constant volume to evaluate the amount of broken hydrogen bonds.
KeywordsSound Velocity Isothermal Compressibility Nucleation Theory Supercooled Water Binodal Curve
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