STRUCTURE MAKING AND BREAKING EFFECTSOF MOLIONIC AQUEOUS SOLUTIONS ESTIMATED WITH DENSITY, APPARENT MOLAL VOLUME, SURFACE TENSION, VISCOSITY, FRICCOHESITY, ACTIVATION ENERGY AND ENTROPY AT 293.15 K
Abstract
Author(s): R. K. Ameta and Man Singh
Density, apparent molal volume, surface tension, viscosity and friccohesity data for 0.01 to 0.1 mol activities at surface and bulk respectively. Viscosity, friccohesity and apparent molal volume kg-1 aqueous K2Cr2O7, K2HPO4, KMnO4, KH2PO4, KCl and KOH at an interval of 0.01 at 293.15 K are studied. Surface and bulk chemical potentials determined from surface tension to analyze ionic data were used to calculate intrinsic viscosity, viscosity B coefficient, intrinsic friccohesity and activation energy as well as entropy changes. Limiting density, surface tension and viscosity obtained by fitting Redlich–Kister equation for ionic contribution onion-water interactions (IWI). Limiting surface tension and B data plotted with intrinsic friccohesity slopes that inferred a reverse relation between surface tension and B coefficient related to cohesive (CF) and frictional forces (FF) on account of surface energy and hydration dynamics respectively. The CF and FF forces are opposite and reinforced with anionic sizes for surface tension and B behavior. Activation energy and entropy data revealed spontaneous interaction of chosen salts with water that inferred structure breaking and making activities.
