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Thermodynamic properties of solutions of alcohols and carbon tetrachloride. Part 1.—Free energies and volumes of mixing

Thermodynamic properties of solutions of alcohols and carbon tetrachloride. Part 1.—Free energies... Thermodynamic Properties of Solutions of Alcohols and Carbon Tetrachloride Part 1.-Free Energies and Volumes of Mixing BY G. C. PARASKEVOPOULOS AND R. W. MISSEN Dept. of Chemical Engineering, University of Toronto, Canada Received 22nd September, 1961 Excess free energies of mixing have been determined as functions of temperature (0-50°C) and composition for solutions of each of methyl, n-propyl and n-octyl alcohols with carbon tetrachloride ; values are also given for n-butyl alcohol+carbon tetrachloride at 35°C. The excess free energy of mixing increases with increasing temperature for the first two systems, but is almost independent of temperature for n-octyl alcohol+ carbon tetrachloride. It decreases with increasing chain length of alcohol. Volumes of mixing have also been measured at 25"C, and are relatively small, not exczeding 0.15 cm3/mole. The behaviour of solutions dilute in alcohol is determined by the hydrogen-bonding characteristic of the alcohol, even when the hydrocarbon part is relatively large. The excess chemical potential of the alcohol at infinite dilution is relatively large (26005 300 cal/mole) and is independent of the particular alcohol. Similarly, the excess partial molar volume of the alcohol at infinite dilution is 3-9 k0-6 cm3,'mole. The corresponding values for carbon tetrachloride decreases as the chain http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Transactions of the Faraday Society Royal Society of Chemistry

Thermodynamic properties of solutions of alcohols and carbon tetrachloride. Part 1.—Free energies and volumes of mixing

Paraskevopoulos, G. C.; Missen, R. W.
Royal Society of Chemistry — Jan 1, 1962
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Abstract

Thermodynamic Properties of Solutions of Alcohols and Carbon Tetrachloride Part 1.-Free Energies and Volumes of Mixing BY G. C. PARASKEVOPOULOS AND R. W. MISSEN Dept. of Chemical Engineering, University of Toronto, Canada Received 22nd September, 1961 Excess free energies of mixing have been determined as functions of temperature (0-50°C) and composition for solutions of each of methyl, n-propyl and n-octyl alcohols with carbon tetrachloride ; values are also given for n-butyl alcohol+carbon tetrachloride at 35°C. The excess free energy of mixing increases with increasing temperature for the first two systems, but is almost independent of temperature for n-octyl alcohol+ carbon tetrachloride. It decreases with increasing chain length of alcohol. Volumes of mixing have also been measured at 25"C, and are relatively small, not exczeding 0.15 cm3/mole. The behaviour of solutions dilute in alcohol is determined by the hydrogen-bonding characteristic of the alcohol, even when the hydrocarbon part is relatively large. The excess chemical potential of the alcohol at infinite dilution is relatively large (26005 300 cal/mole) and is independent of the particular alcohol. Similarly, the excess partial molar volume of the alcohol at infinite dilution is 3-9 k0-6 cm3,'mole. The corresponding values for carbon tetrachloride decreases as the chain

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Transactions of the Faraday Society – Royal Society of Chemistry

Published: Jan 1, 1962

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