IMF2017

Curie-Weiss like temperature dependence of the dielectric permitivity has been shown to take place in water. A bi-linear change at T*= 60 ºC has been reported recently. In this work an effective field statistical theory is developed for polar liquids such as water which describes well its behavior through T*. It implies a change in dipole moment from a value close to that in ice to a value close to that in water vapor. The Lindemann relationship is used to estimate the fractional oscillation of the water molecule from melting temperature to T* and beyond in terms of the Debye temperature of water T_Debye = 224 K.