Thermodynamic Properties of Binary Mixture Using Time Domain Reflectrometry Technique
In this paper we have reported, a dielectric relaxation study of Chlorobenzene (CB) – Diethylene Glycol Monomethyl Ether (DGME) binary mixtureof polar liquids with varying concentrations at different temperatures in the frequency range between 10MHz-20GHz using time domain reflectometry (TDR) technique in reflection mode.Dielectric parameters viz. dielectric constant (ε0)and relaxation time (τ) were obtained from complex permittivity spectra ε*(ω), using nonlinear least squares fit method. Using these parameters, Thermodynamic properties like enthalpy change (ΔH) and entropy change (ΔS)are determined.The dielectric relaxation is use to estimate thermodynamic properties.Thermodynamic propertiesare helpful in accessing the states of dipoles under the influence of applied field.
Keywords- Dielectric relaxation, Time domain Reflectometry,Thermodynamic properties
