TY - JOUR
T1 - Hydrophobic interaction in water-ethanol mixtures
AU - Yaacobi, M.
AU - Ben-Naim, A.
PY - 1973/10
Y1 - 1973/10
N2 - The solubility, free energy, entropy, and enthalpy of solutions of methane and ethane were determined in various mixtures of water and ethanol. The hydrophobic interaction for the pair methane-methane was computed, in these mixtures, using an approximate expression derived previously. Also the entropy and the enthalpy associated with the hydrophobic interaction were evaluated from the experimental data. The main finding is the steep decrease in the strength of the hydrophobic interaction as the mixture becomes richer in alcohol. The variation of the corresponding entropy and enthalpy also shows an abrupt change at the composition of xethanol≈0.2. Some interpretations of these findings in terms of structural changes in the solvent are discussed.
AB - The solubility, free energy, entropy, and enthalpy of solutions of methane and ethane were determined in various mixtures of water and ethanol. The hydrophobic interaction for the pair methane-methane was computed, in these mixtures, using an approximate expression derived previously. Also the entropy and the enthalpy associated with the hydrophobic interaction were evaluated from the experimental data. The main finding is the steep decrease in the strength of the hydrophobic interaction as the mixture becomes richer in alcohol. The variation of the corresponding entropy and enthalpy also shows an abrupt change at the composition of xethanol≈0.2. Some interpretations of these findings in terms of structural changes in the solvent are discussed.
KW - aqueous solutions
KW - ethanol-water system
KW - hydrophobic interaction
KW - solubility of gases
KW - solutions
KW - Water
UR - http://www.scopus.com/inward/record.url?scp=0001383817&partnerID=8YFLogxK
U2 - 10.1007/BF00651005
DO - 10.1007/BF00651005
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AN - SCOPUS:0001383817
SN - 0095-9782
VL - 2
SP - 425
EP - 443
JO - Journal of Solution Chemistry
JF - Journal of Solution Chemistry
IS - 5
ER -