Present communication reports the experimental values of the dielectric relaxation time () and dipole moment () of binary mixtures of N-methylformamide (NMF) and dimethylsulphoxid (DMSO) in dilute solution of benzene at wavelength 3.13 cm in the microwave region. The measurements have been made at 293, 303,313 and 323 K, in order to calculate the free energy of activation for dipole orientation process (F). The experimental values of t have been correlated with the calculated value of t obtained using different theories of dielectric relaxation time ( ) for mixtures. It is concluded from this comparative study that both the values are comparable to each other. Thermo dynamical parameters like molar free energy of activation (F), molar enthalpy of activation (H) and molar entropy of activation (S) have been evaluated by considering the relaxation as the rate
process.
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A. K. Singh, "Study of dielectric relaxation mechanism and thermodynamic parameters of binary mixtures of N-methylformamide and dimethylsulphoxide in dilute solution of benzene", Journal of Ultra Scientist of Physical Sciences, Volume 29, Issue 7, Page Number 171-176, 2017Copy the following to cite this URL:
A. K. Singh, "Study of dielectric relaxation mechanism and thermodynamic parameters of binary mixtures of N-methylformamide and dimethylsulphoxide in dilute solution of benzene", Journal of Ultra Scientist of Physical Sciences, Volume 29, Issue 7, Page Number 171-176, 2017Available from: http://www.ultraphysicalsciences.org/paper/828/