Summary
Measures effected with the thermal method for the frequency 1.8 MHz to determinate the ultrasonic absorption coefficient in benzol are reported. The value obtained for α is much higher than the theoretical one. This anomaly could be ascribed to the high value of the second volume viscosity coefficient, according with Liebermann’s measures.
Riassunto
Si riferiscono misure effettuate col metodo termico alla frequenza di 1,8 MHz per determinare il coefficiente d’assorbimento ultracustico in benzolo. Il valore ottenuto per α è molto maggiore del teorico, anomalia che potrebbe essere ascritta all’elevato valore del secondo coefficiente di viscosità di volume secondo la misura di Liebermann.
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References
E. Grossetti:Nuovo Cimento,11, 250 (1954).
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Grossetti, E. Determination of the ultrasonic absorption coefficient of benzol with thermal method. Nuovo Cim 1, 525–526 (1955). https://doi.org/10.1007/BF02855213
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DOI: https://doi.org/10.1007/BF02855213