Universidad de Santiago de Compostela Facultad de Física, Departamento de Física de la Materia Condensada, Grupo de Ciencia y Tecnología de Coloides E-15706 Santiago de Compostela Spain E-15706 Santiago de Compostela Spain
Electrical conductivity of aqueous solutions of dodecylpyridinium chloride and bromide have been determined. From these data
the critical micelle concentration (cmc) was determined. The thermal properties as standard Gibbs free energy, enthalpy and entropy of micellization was estimated
from a uncharged-phase separation model and enables to obtain another properties like heat capacity of micellization and the
relevant parameters in the minimum of temperature dependence of cmc. The enthalpy-entropy compensation was shown for the studied compounds.