• K Srinivasa Manja

      Articles written in Pramana – Journal of Physics

    • Ultrasonic absorption studies in some solutions of carboxylic-acids in dioxan

      K Srinivasa Manja A Srinivasa Rao

      More Details Abstract Fulltext PDF

      Ultrasonic absorption studies are carried out in carboxylic acid-dioxan mixtures for various concentrations at 30±0.1°C. The measured absorption is much higher than the classical absorption. The excess absorption initially increases with increase of carboxylic acid concentration, attains a maximum and then decreases with further increase in concentration. The related parameters such as volume viscosity, relaxation time and free energy difference between the two states (ΔF) have also been calculated. The results can be explained satisfactorily using Hall’s two-state model.

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