eng Ansari Education and Research Society Journal of Ultra Chemistry 0973-3450 2319-8036 May 2020 16 3 30 45 http://dx.doi.org/10.22147/juc/160302 908 article T. SRINIVASA MURTHY 1 Sanjay Ghodawat JEE-NEET Academy, Sanjay Ghodawat University Atigre-416118, Kolhapur (M.H) (India) <p style="text-align:justify">Relative viscosities of NaCl, KCl, KBr, RbCl, KI in 10% (W/W) 2-(Ethoxy) ethanol - water mixture are measured at 30^o , 35^o and 40^oC. Joules-Dole equation is used to analyze the data to calculate B-coefficients. Transition state theory is applied to calculate Enthalpy activation of viscous flow ( &nbsp;<img alt="\Delta \" src="https://latex.codecogs.com/gif.latex?%5CDelta%20%5C" />H^-₂^0# ) and entropy of activation of viscous flow ( <img alt="\Delta \" src="https://latex.codecogs.com/gif.latex?%5CDelta%20%5C" />S₂^0# ). The temperature coefficients of ( <img alt="\Delta \" src="https://latex.codecogs.com/gif.latex?%5CDelta%20%5C" />H₂^0#) ,&nbsp; &nbsp; &nbsp; &nbsp;( &nbsp;<img alt="\Delta \" src="https://latex.codecogs.com/gif.latex?%5CDelta%20%5C" />S₂ ^{0 #}) and B-coefficients show that in the present solvent system Na⁺ is a structure making ion while K⁺. Rb⁺, Cl^-, Br^-, I^- &nbsp;&nbsp;are structure breaking ions. An attempt is made to split the enthalpy and entropy values of the electrolytes into their ionic contributions. Solute-solvent interaction parameter ( <img alt="\Delta \" src="https://latex.codecogs.com/gif.latex?%5CDelta%20%5C" />) &nbsp;, solvation numbers and ionic volumes are also calculated. These values support the conclusions drawn from&nbsp;<img alt="\Delta \" src="https://latex.codecogs.com/gif.latex?%5CDelta%20%5C" />H^-₂^0# &nbsp;and <img alt="\Delta \" src="https://latex.codecogs.com/gif.latex?%5CDelta%20%5C" />S₂^0# . Dimensions of the ions are calculated from the viscosity B-coefficients and are compared with Pauling&rsquo;s crystal radius of the ions.</p> https://journalofchemistry.org/paper/908/ Viscosity, solute u2013 solvent interaction electrolyte solutions 2-(Ethoxy)-ethanol olvation of ions