Photoacoustic method as a tool for analysis of concentration-dependent thermal effusivity in a mixture of methyl alcohol and water

Nikodem Ponikwicki , Łukasz Szczepanik , Joanna Gondek , Bogumił Bolesław Linde , Ewa Barbara Skrodzka , Vladimir Molchanov , Konstantin B. Yushkov , Rostislav Grechishkin

Abstract

It has been shown in the present paper that exploitation of the experimental potential of a photoacoustic technique can provide information on a type of intermolecular interactions in aqueous mixtures containing organic liquids, when the basic parameters of these mixtures, such as density, rho, specific heat, c(p) or thermal conductivity, lambda, are unknown. Earlier investigations of concentration dependence of effusivity in different aqueous solutions of organic liquids demonstrated that the photoacoustics method is a sensitive tool to identify hydrophobic properties of such liquids. In our experiment this suggestion was exploited for a solution of methanol which is known to display much weaker hydrophobicity than other alcohols. It was confirmed that the location of extreme deviations from linearity for the thermal effusivity, Delta e, agrees well with that of characteristic points for the isentropic compressibility coefficient, k(S), and the excess molar volume, V-m(E), as a function of the concentration.
Author Nikodem Ponikwicki (FMPI / IEP)
Nikodem Ponikwicki,,
- Institute of Experimental Physics
, Łukasz Szczepanik (FMPI / IEP)
Łukasz Szczepanik,,
- Institute of Experimental Physics
, Joanna Gondek (FMPI / IEP)
Joanna Gondek,,
- Institute of Experimental Physics
, Bogumił Bolesław Linde (FMPI / IEP)
Bogumił Bolesław Linde,,
- Institute of Experimental Physics
, Ewa Barbara Skrodzka
Ewa Barbara Skrodzka,,
-
, Vladimir Molchanov
Vladimir Molchanov,,
-
, Konstantin B. Yushkov
Konstantin B. Yushkov,,
-
, Rostislav Grechishkin
Rostislav Grechishkin,,
-
Journal seriesArchives of Acoustics, ISSN 0137-5075, e-ISSN 2300-262X, (A 15 pkt)
Issue year2019
Vol44
No1
Pages153-160
Publication size in sheets0.5
Keywords in Englishthermal effusivity, aqueous solutions, methanol, photoacoustic technique
ASJC Classification3102 Acoustics and Ultrasonics
DOIDOI:10.24425/aoa.2019.126361
URL http://acoustics.ippt.gov.pl/index.php/aa/article/download/2223/pdf_399
Languageen angielski
LicenseJournal (articles only); published final; Uznanie Autorstwa - Na Tych Samych Warunkach (CC-BY-SA); with publication
Score (nominal)15
ScoreMinisterial score = 15.0, 24-07-2019, ArticleFromJournal
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2016 = 0.948; WoS Impact Factor: 2017 = 0.917 (2) - 2017=0.819 (5)
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