Vinay Sanguri
Allahabad University
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Publication
Featured researches published by Vinay Sanguri.
Journal of Molecular Liquids | 2002
J. D. Pandey; S.B. Tripathi; Vinay Sanguri
Thermal expansivity of a number of binary and multicomponent molecular liquid mixture have been evaluated by applying various theoretical models viz. hard sphere and statistical mechanical theory. Formulism has been made. Computed values of thermal expansivity have been compared with experimental findings.
Physics and Chemistry of Liquids | 2008
J. D. Pandey; Vinay Sanguri
Florys statistical theory has been employed for the computation of ultrasonic velocity (u), density (ρ), internal pressure (P i), thermal expansion coefficient (α), isothermal compressibility (β T), adiabatic compressibility (β S), heat capacity at constant pressure (C P), heat capacity at constant volume (C V), heat capacities ratio (γ), pseudo-Gruneisen parameter (Γ), excess volume (V E) and excess heat capacity at constant pressure ( ) at varying temperatures for 10 binary and 5 ternary systems. The binary systems under investigation are: acetonitrile + benzene, benzene + DMF, acetonitrile + DMF, cyclohexanol + cyclohexane, piperidine + tetrahydropyran, piperidine + cyclohexane, tetrahydropyran + cyclohexane, benzene + p-xylene, benzene + p-dioxan, acetone + methyliodide, and the ternary systems are: benzene + chloroform + cyclohexane, toluene + chloroform + cyclohexane, chlorobenzene + chloroform + cyclohexane, dioxane + chloroform + cyclohexane and chlorobenzene + cyclohexane + n-heptane. The results of calculations show that for all the systems under consideration, the calculated values of various thermodynamic parameters show the same trend as observed experimentally. Fairly good agreement is found between theoretical and experimental values. The ultrasonic velocity of liquid mixtures is obtained using the most popular Flory theory without the help of any empirical relation.
Physics and Chemistry of Liquids | 2001
J. D. Pandey; N. K. Soni; V. K. Singh; Vinay Sanguri
Abstract Surface tension has been measured by the differential capillary rise method for three ternary mixtures containing alkanes (hexane + cyclohexane+benzene, pentane + hexane + benzene and cyclohexane + heptane + toluene at 298.15\pm 0.1°K). The sign and magnitude of the excess surface tension and excess volume depend ultimately upon the chain length of the component of the mixtures. The results of the surface tension were compared with theoretical values obtained from Flory theory, Sanchez method, Brock-Bird relation and volume fraction statistics. There is reasonable agreement between theory and experiment.
Journal of Solution Chemistry | 1995
J. D. Pandey; Akhilesh Shukla; Vinay Sanguri; Siddharth Pandey
Viscosity of quaternary non-electrolyte solution carbon tetrachloride+ cyclohexane+benzene+toluene has been experimentally determined at 25°C. Experimental results of viscosity have been analyzed in the light of PFP theory and BAB method. A comparative study of the two approaches has been made. Excellent agreement between theoretical and experimental findings is achieved.
Pramana | 2005
J. D. Pandey; Ranjan Dey; Vinay Sanguri; Jyotsna Chhabra; Tanuja Nautiyal
The present investigation comprises of theoretical evaluation of acoustic non-linearity parameter,B/A for equimolar binary mixtures, viz. chlorobenzene or 1-chloronaphthalene with a series of normal alkanes (n-Cn,n = 6, 8, 10, 12, 14, 16), and with a series of highly branched alkanes (br-Cn,n = 6, 8, 12, 16), viz. 2,2-dimethylbutane (br-C6), 2,2,4-trimethylpentane (br-C8), 2,2,4,6,6-pentamethylheptane (br-C12) and 2,2,4,4,6,8,8-heptamethylnonane (br-C16). Tong and Dong method, thermoacoustical method, Hartmann relation and Ballou relation have been employed to evaluateB/A. A comparative study ofB/A values obtained from the aforementioned methods has been made. The results are discussed on the basis of structural orientations of normal and branched alkanes.
Physics and Chemistry of Liquids | 2012
J. D. Pandey; Vinay Sanguri; D.K. Dwivedi
A generalized hole theory for computing the thermodynamic and acoustic properties of liquids and liquid mixtures has been developed. Ultrasonic velocity, isothermal compressibility and thermal expansivity of different pure liquids at 293.15 and 298.15 K are evaluated by using hole theory. The calculated values of ultrasonic velocities, isothermal compressibilities, and thermal expansivities are compared with the experimental findings. A fairly good agreement between experimental and calculated values is observed.
Pramana | 2000
J. D. Pandey; Jyotsna Chhabra; Ranjan Dey; Vinay Sanguri; Richa Verma
Journal of Molecular Liquids | 2007
J. D. Pandey; Vinay Sanguri; D.K. Dwivedi; K.K. Tiwari
Journal of Molecular Liquids | 2008
Vinay Sanguri; D.K. Dwivedi; Nidhi Singh; Niti Pandey; J. D. Pandey
Journal of Molecular Liquids | 2010
J. D. Pandey; Tanu Srivastava; Prakash Chandra; D. K. Dwivedi; Vinay Sanguri