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  • Chem Sci Trans., 2013, 2(4),  pp 1395-1401  

    DOI:10.7598/cst2013.511

    Research Article

    Molecular Interaction Study of Mixture of N,N-Dimethylformamide, Cyclohexane and Pyridine at Different Frequencies

  • MANOJ KU. PRAHARAJ, ABHIRAM SATAPATHY, PRATIVARANI MISHRA and SARMISTHA MISHRA
  • P.G.Department of Physics, Ravenshaw University, Cuttack, Odisha -753003, India
    Department of Physics, ABIT, CDA, Sector-1, Cuttack, Odisha- 753014, India
  • Abstract

    The ultrasonic velocity, density and viscosity have been measured for ternary mixture of N, N dimethylformamide (DMF), cyclohexane and pyridine at different frequencies 2 MHz, 4 MHz and 6 MHz but at constant temperature 318 K. These experimental data’s have been used to estimate the parameters such as adiabatic compressibility (β), intermolecular free length (Lf), Gibbs’ free energy (ΔG), free volume (Vf), specific acoustic impedance (Z) and absorption coefficient (a/f2) for the mixture. The excess values of these parameters are also evaluated and the molecular associations in the mixture are discussed.

    Keywords

    Ultrasonic velocity, Adiabatic compressibility, Free length, Free volume, Gibbs free energy

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