%0 Journal Article
%T THERMO-ACOUSTICAL AND EXCESS THERMODYNAMIC STUDIES OF TERNARY LIQUID MIXTURES OF SUBSTITUTED BENZENES IN AQUEOUS MIXED SOLVENT SYSTEMS AT 303.15, 308.15 AND 313.15 K
%A THIRUMARAN S. and KARTHIKEYAN N.
%J International Journal of Chemical Research
%D 2011
%I Bioinfo Publications
%X The observed experimental parameters such as density (¦Ñ), viscosity (¦Ç) and ultrasonic velocity (U) of ternaryliquid mixtures of substituted benzenes such as chlorobenzene, bromobenzene, nitrobenzene, ethylbenzene and tolueneadded in the fixed binary solvent mixtures of (ratio 4:2) acetophenone and 1-heptanol at 303.15, 308.15 and 313.15K weredetermined. The observed experimental data have been utilized to evaluate some of the excess thermo acousticalparameters such as adiabatic compressibility (¦ÂE), intermolecular free length (LfE), free volume (VfE), internal pressure (¦ÐiE),Gibb¡¯s energy (¦¤GE), viscosity (¦ÇE) molar volume (VmE)and Grunberg¡¯s Nissan interaction parameter (d). It is eventuallyobserved that weak molecular association between acetophenone and 1-heptanol is through hydrogen bonding andsubstituted benzenes through weak dipole-dipole interactions. The existence of formation of donor ¨C acceptor complexes inthe present study has been identified and promptly discussed. Further, the impact due to the elevation of temperature onthese liquid systems has also been interpreted.
%K adiabatic compressibility
%K dipole-dipole interaction
%K hydrogen bonding
%K internal pressure
%K intermolecular free length
%U http://www.bioinfo.in/uploadfiles/13243636603_3_5_IJCR.pdf