Dielectric Relaxation and Thermodynamic Study of Caffeine-Chloroform Solution using TDR

A. R. Lathi
2021 International Journal for Research in Applied Science and Engineering Technology  
The Complex permittivity of caffeine – Chloroform solution for different temperature and various concentrations have been measured in the range of 10MHZ to 30 GHz using Time Domain Reflectometry. From complex permittivity spectra, Static dielectric constant (εo) and relaxation time (τ) were determined using nonlinear least square fit method. Using Erying rate equation, for different molar concentration of caffeine Enthalpy of Activation ∆H and Entropy of Activation ∆S were determined.
doi:10.22214/ijraset.2021.37222 fatcat:x2gjmzxme5dwtfqdskspg373mu