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2909664 
Journal Article 
Physico-chemical and excess properties of ketones with propanol and cyclohexane by measurement of ultrasonic speed 
Sumathi, T; Priyatharshini, S; Punithasri, S 
2011 
Yes 
Indian Journal of Pure and Applied Physics
ISSN: 0019-5596 
49 
5 
328-334 
English 
WOS:000291070000006 
Viscosities (η), densities (p) and ultrasonic velocities (U) have been measured at 303.15, 308.15 and 313.15 K for the ternary systems of propanone, butan-2-one and pentan-2-one with the binary mixtures of cyclohexane and 1-propanol. Using these measured values, adiabatic compressibility (b), free length (Lf), internal pressure (πi), acoustic impedance (Z), Gibb's free energy (ΔG) and their excess values for all the three systems have been calculated. The behaviour of these parameters with composition of the mixture has been discussed in terms of molecular interactions between the components of liquids. Moreover, the experimental values of ultrasonic speeds were compared with those calculated by using Nomoto's relation, ideal mixture relation and impedance dependence relation. The suitability of these theories and relations in reproducing the experimental ultrasonic speed has also been studied. 
Ternary mixtures; Excess values; Molecular interaction; Thermodynamic functions; Ketones