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Item Some properties of binary aqueous liquid mixtures. Apparent molar volumes and heat capacities at 298.15 K over the whole mole fraction range(Journal of the Chemical Society : Faraday Transaction - I. The Chemical Society, London. 1978, 74 (05), 1978) Visser, Cees De; Heuvelsland, Wim J. M.; Dunn, Lawrence A.; Somsen, GusDensities and molar heat capacities have been measured for the following binary systems at 298.15 K: water + formamide, water +N,N-dimethylacetamide, water + dimethylsulphoxide and water + acetonitrile over the whole mole fraction range. From these data apparent molar volumes and heat capacities have been calculated for both water and the organic components. The volumes have been discussed in terms of enhanced water–water interactions and as being the result of inter-component interaction. The volume of water infinitely diluted in the various solvents might be well understood from the packing of hard sphere molecules. Similar reasoning cannot be applied to the heat capacities. Most of the curves are typical for weakly hydrophobic solutes, while the apparent molar heat capacity curve of formamide in water + formamide resembles that of hydrophilic solutes. Finally, the apparent molar heat capacities of water at infinite dilution in the various solvents are unexpectedly high.Item Thermodynamic properties of organic oxygen compounds: Part 36.—Heat capacity of isopropyl ether(Journal of the Chemical Society : Faraday Transaction - I. The Chemical Society, London. 1974, 70 (10), 1974) Andon, Richard J. L.; Counsell, Jack F.; Lee, Derek A.Heat capacities of isopropyl ether (crystals, liquid and vapour) in the range 14 to 450 K and enthalpies of melting and vaporization have been measured. Heat capacities of the ideal gas, second virial coefficients of the vapour, and standard entropies of liquid and gas have been calculated from the measured properties.Item Heat Capacity of Nickel and Cobalt Tellurides(Journal of the Chemical Society : Faraday Transaction - I. The Chemical Society, London. 1974, 70 (12), 1974) Mills, Kenneth C.Differential scanning calorimetry has been used to measure the heat capacities between 200 and 800 K of “Ni3Te2”, five compositions of the δ Ni–Te phase, four compositions of the β Co–Te phase and two compositions of the γ CoTe2+x phase. Thermodynamic properties are given for the various phases.Item Heat Capacity of the H2O/KNaX Zeolite Adsorption System(Journal of the Chemical Society : Faraday Transaction - I. The Chemical Society, London. 1973, 69 (3), 1973) Berezin, G. I.; Kiselev, A. V.; Sinitsyn, V. A.The heat capacity of the H2O/KNaX zeolite system has been measured at 34°C for various amounts of adsorption. The dependence of measured heat capacity of this system and calculated average molar heat capacity of adsorbate on the amount of adsorption passes through two distinct maxima. These maxima correspond to previously obtained waves in the plot of the heat of adsorption of water against the amount of adsorption for the same H2O/KNaX zeolite system. The maxima are due mainly to the contribution to the heat capacity of the heat of transfer of a part of the water molecules from the adsorption sites with higher heat of adsorption to those with lower heat of adsorption. The thermal stability of different water associates in zeolite pores has been investigated. The differential heat capacities of adsorbed water were calculated and the changes in the heat of adsorption of water when the temperature of the system was increased were determined. The results show that with increasing temperature there is a smoothing out of the waves produced in the plot of the differential heat of adsorption as the function of the amount of water adsorbed.