Archives of Acoustics,
21, 1, pp. 53-63, 1996
Critical properties of acoustic wave absorption in the benzonitrile-isooctane system
Experimental results for the absorption of ultrasonic waves in critical benzonitrile + isooctane mixtures in the frequency range 5–21 MHz and at temperatures 0.15 ≤ T – Tc ≤ 20 K are reported and confronted with the Shiwa-Kawasaki's mode-coupling theory. The theoretical
scaling function was found to describe the experimental results correctly throughout the reduced frequency range ω* < 50. The values of certain thermodynamic parameters necessary for the determination of the reduced amplitude A(ε) were calculated using the linear relation between αc/f2 and f-1.06 predicted by the Bhattacharjee-Ferell dynamic scaling theory.
scaling function was found to describe the experimental results correctly throughout the reduced frequency range ω* < 50. The values of certain thermodynamic parameters necessary for the determination of the reduced amplitude A(ε) were calculated using the linear relation between αc/f2 and f-1.06 predicted by the Bhattacharjee-Ferell dynamic scaling theory.
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