Shukla R.K.,Vssdcollege |
Awasthi N.,Vssdcollege |
Kumar A.,Vssdcollege |
Shukla A.,Vssdcollege |
And 2 more authors.
Journal of Molecular Liquids | Year: 2011
Densities and viscosities were measured for the binary liquid mixtures formed by benzonitrile, chlorobenzene, benzyl chloride and benzyl alcohol with benzene at T = 298.15, 303.15, 308.15 and 313.15 K and atmospheric pressure over the whole concentration range. Prigogine-Flory-Patterson (PFP) and Ramaswami and Anbananthan models were used to study the associational behaviour of two weakly interacting liquids. The models were also tested for different systems showing that the latter yields fair agreement between theory and experiment. The experimental values of viscosities were fitted to the Redlich-Kister polynomial relation to estimate the binary coefficients and standard errors. Furthermore, McAllister multibody interaction model is used to correlate the binary viscosities with the experimental findings. © 2010 Elsevier B.V.
Nand L.,Vssdcollege |
Yadav K.D.S.,Ddu Gorakhpur University
Biosciences Biotechnology Research Asia | Year: 2010
Laccase is an oxidase enzyme, produced from newly isolated fungal strain Aspergillus foetidus. Maximum activity of laccase appeared on the 9 th day of inoculation of spores of fungal strain in the liquid culture medium. The activity of laccase detected by UV/VIS spectrophotometer using guiacol as a substrate. The enzymatic characteristic like Km, pH and temperature optimum were reported for this enzyme.
Shukla R.K.,Vssdcollege |
Gangwar V.S.,Vssdcollege |
Shukla S.,M G C G University |
Tiwari M.,M G C G University |
Tenguriya K.,P.A. College
International Journal of Thermodynamics | Year: 2015
Density and speed of sound were measured earlier by us for binary liquid mixtures formed by Benzonitrile, Chlorobenzene, Benzyl chloride and Benzyl alcohol with Benzene at temperature range 298.15 to 313.15 K and atmospheric pressure over the whole concentration range. Pseudo-Gruneisen parameter and internal pressure were derived from the measured values of density and ultrasonic velocity. These values were compared with the theoretical values obtained by the utilization of Flory theory, Ramaswamy and Anbananthan model and model suggested by Glinski to predict the behavior of weakly interacting liquids. The observed properties derived from measured data were fitted to Redlich-Kister polynomial relation to estimate the binary coefficients and standard errors. Excess Pseudo-Gruneisen parameter for these binary mixtures was computed to study the molecular interactions involved in the liquid systems.