Ionic Conductivity of Alkali Halides across a Polyaniline-Zirconium (IV)-Arsenate Membrane

In continuation to our previous work with composite polyaniline-zirconium (iv)-arsenate (pza), we further extended with the conductivity measurements in this report. allthe calculations reported in here were extracted from the experiments carried out in thetemperature range of (25-50)±0.1°c and at different concentrations (0.01?c(m)?1) of kcl,nacl and licl 1-1 electrolyte solutions. the diffusion coefficient for 1-1 electrolyte solutionswas found to decrease in the order k+ > na+ > li+, which is in accordance with a decrease inthe size of cation. the resistance is decreasing with increasing time in the order li+ > na+ > k+, and is due to an increased size of the cation for the chosen electrolytes. from the results,the conductivity values for 1-1 electrolytes in the membrane phase were found to be higher atthe lower concentration for all the electrolytes in the order of li+ > na+ > k+. it was observedthat the conductivity found to be increased with an increase of temperature and obeyed thearrhenius equation. the activation energy increased with an increased concentration ofelectrolyte solution and the sequence for the energy of activation is li+ > na+ > k+. the gibbsfree energy, enthalpy and entropy for the ions were calculated at different concentrations andtemperatures. all the values of ?g, ?h, and ?s were found to be positive in nature and arefollowing the order k+ > na+ > li+.