Journal of Pure and Applied Ultrasonics

J. D. Pandey ¹, Ranjan Dey ¹, N. K. Soni ¹, R. K. Mishra ¹, D. K. Dwivedi ²

Affiliations
1 Department of Chemistry, University of Allahabad, Allahabad-211002, IN
2 Department of Electronics, E.C.C., Allahabad, IN

Abstract

Flory's statistical theory has been extended for the computation of internal pressure, isentropic compressibility, isothermal compressibility and Pseudo Gruneisen parameter of binary mixture nitrobenzene+benzene at pressure up to 10 MPa and at two different temperatures (293.15K, 303.15K & 313.15K). For a comparative study of the isothermal compressibility of this system, equation of state based on the psuedo spinodal hypothesis developed by Baonza et al has also been utilized to deduce the isothermal compressibility of this mixture. The computed values of P_int, β_T, β_s and Γ have been compared with the experimental findings available in literature. Satisfactory agreement has been found between experimental and theoretical values.

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J. D. Pandey ¹, V. Sanguri ¹, R. K. Mishra ¹, A. K. Singh ¹

Affiliations
1 Department of Chemistry, University of Allahabad, Allahabad-211002, IN

Abstract

Acoustic methods have been applied to estimate the effective Debye temperature (θ_D) of liquid mixtures (binary and ternary). The theoretical approach, employed earlier, has been completely modified, and a new approach has been suggested. Six binary and six ternary liquid mixtures have been undertaken for computing the values of effective Debye temperature using the present approach. Theoretical values have been compared with the standard findings, and quite good agreement has been achieved. The necessary experimental data needed have been taken from literature.

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