Velocity dispersion and attenuation of acoustic waves in critical mixtures
Theoretical considerations on critical ultrasonic dispersion and attenuation in binary liquid mixtures based on the mode-coupling approach and frequency-dependent heat capacity are presented. A general expression for the critical amplitude A (T) in terms of the parameter d = (ρc^0_v,x/Tα_p) x (dT_c/...
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| Format: | Article |
| Language: | English |
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Institute of Fundamental Technological Research Polish Academy of Sciences
2014-05-01
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| Series: | Archives of Acoustics |
| Online Access: | https://acoustics.ippt.pan.pl/index.php/aa/article/view/1290 |
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| author | T. HORNOWSKI M. ŁABOWSKI |
| author_facet | T. HORNOWSKI M. ŁABOWSKI |
| author_sort | T. HORNOWSKI |
| collection | DOAJ |
| description | Theoretical considerations on critical ultrasonic dispersion and attenuation in binary liquid mixtures based on the mode-coupling approach and frequency-dependent heat capacity are presented. A general expression for the critical amplitude A (T) in terms of the parameter d = (ρc^0_v,x/Tα_p) x (dT_c/dP) is derived. It is shown that for specific values of d one obtains expressions for A (T) equivalent to those of Fixman, Kawasaki, Mistura and Chaban. Moreover, an experimental test has been carried out on the system methanol-n-hexane showing good agreement between our general expression for A (T) and experimental data. |
| format | Article |
| id | doaj-art-c4ad0d15aef04bd9bb430f9795561b8f |
| institution | Kabale University |
| issn | 0137-5075 2300-262X |
| language | English |
| publishDate | 2014-05-01 |
| publisher | Institute of Fundamental Technological Research Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Acoustics |
| spelling | doaj-art-c4ad0d15aef04bd9bb430f9795561b8f2025-08-20T03:30:25ZengInstitute of Fundamental Technological Research Polish Academy of SciencesArchives of Acoustics0137-50752300-262X2014-05-01153-4Velocity dispersion and attenuation of acoustic waves in critical mixturesT. HORNOWSKI0M. ŁABOWSKI1Institute of Acoustics Adam Mickiewicz UniversityInstitute of Acoustics Adam Mickiewicz UniversityTheoretical considerations on critical ultrasonic dispersion and attenuation in binary liquid mixtures based on the mode-coupling approach and frequency-dependent heat capacity are presented. A general expression for the critical amplitude A (T) in terms of the parameter d = (ρc^0_v,x/Tα_p) x (dT_c/dP) is derived. It is shown that for specific values of d one obtains expressions for A (T) equivalent to those of Fixman, Kawasaki, Mistura and Chaban. Moreover, an experimental test has been carried out on the system methanol-n-hexane showing good agreement between our general expression for A (T) and experimental data.https://acoustics.ippt.pan.pl/index.php/aa/article/view/1290 |
| spellingShingle | T. HORNOWSKI M. ŁABOWSKI Velocity dispersion and attenuation of acoustic waves in critical mixtures Archives of Acoustics |
| title | Velocity dispersion and attenuation of acoustic waves in critical mixtures |
| title_full | Velocity dispersion and attenuation of acoustic waves in critical mixtures |
| title_fullStr | Velocity dispersion and attenuation of acoustic waves in critical mixtures |
| title_full_unstemmed | Velocity dispersion and attenuation of acoustic waves in critical mixtures |
| title_short | Velocity dispersion and attenuation of acoustic waves in critical mixtures |
| title_sort | velocity dispersion and attenuation of acoustic waves in critical mixtures |
| url | https://acoustics.ippt.pan.pl/index.php/aa/article/view/1290 |
| work_keys_str_mv | AT thornowski velocitydispersionandattenuationofacousticwavesincriticalmixtures AT młabowski velocitydispersionandattenuationofacousticwavesincriticalmixtures |