Abstract
This paper explains the various characteristics of liquid and liquid mixtures. In this paper viscosities for the binary liquid mixtures of methyl ethyl ketone with benzene, nitrobenzene, cblorobenzene and bromobenzene were determined at 303.15 K. The deviation in viscosity was calculated and its behaviours was studied as a function of mole fraction. The deviation in viscosity is negative in the system methyl ethyl ketone with benzene and is positive in the other systems. The results were discussed in terms of interactions.
Highlights
Pioneering attempts have been made by several workers [1,2,3,4] to study the interactions in the binary liquid mixtures but only a few [5,6,7] has used the viscosity data for this purpose
THEORETICAL CALCULATION : The following relation [8] has been given for the actual value of fluidity of the mixture, (1) where, m( ) = fluidity of the mixture, Vm = molar volume of the mixture, h = Plank's constant, N = Avogadro's number, E1 and E2 = energy of vaporization of the components whose mole fractions are x1 and x2, respectively, Gm = excess free energy of mixture, R = gas constant, and T = temperature in absolute
The values of density and viscosity are obtained from the standard tables
Summary
Pioneering attempts have been made by several workers [1,2,3,4] to study the interactions in the binary liquid mixtures but only a few [5,6,7] has used the viscosity data for this purpose. 2. THEORETICAL CALCULATION : The following relation [8] has been given for the actual value of fluidity of the mixture, (1) where, m( ) = fluidity of the mixture, Vm = molar volume of the mixture, h = Plank's constant, N = Avogadro's number, E1 and E2 = energy of vaporization of the components whose mole fractions are x1 and x2, respectively, Gm = excess free energy of mixture, R = gas constant, and T = temperature in absolute. (3) takes the following form, (4) and from equations (3) and (4) we obtain, (5) Katti et al [5] proposed the following equation for the theoretical evaluation of viscosity, (6) where, Wvis represents the interaction energy between the components.
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