Solvolysis Thermodynamic Parameters of Phenyl Hydrazine Hydrochloride

AbstractThe present work deals with studying the effect of solvent and temperature on solvolysis process using both pH-metric conductometric measurements. The pH conductivity different concentrations phenyl hydrazine hydrochloride in water (H2O), ethanol (EtOH) (EtOH-H2O) mixtures percentages EtOH; 30%, 50%, 70%, 100% (v/v) at temperatures from 293.15 to 308.15 K a step 5 were measured experimentally. aniline same was also measured. Depending data, constant chloride estimated. thermodynamic parameters (free energy change, , enthalpy entropy activation energy, ) evaluated dependence constant. Positive values standard change ( ), indicate that is endothermic process. increase as alcohol percentage 30% - 100%, which attributed higher solute-solvent interaction.