Standard molar enthalpies,volumes, and heat capacities of adamantane in cyclohexane,n-hexane,and carbon tetrachloride. Interpretation using the scaled-particle theory |
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Authors: | Nicole Morel-Desrosiers Jean-Pierre Morel |
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Affiliation: | (1) Laboratoire d'Etude des Interactions Solutés-Solvants, Université de Clermont, Chimie Bât. 6, B.P. 45, 63170 Aubière, France |
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Abstract: | The volumes, heat capacities, and enthalpies of solution of adamantane in cycloxane,n-hexane, and carbon tetrachloride have been measured as a function of concentration at 25°C (15, 25, and 35°C for the volumes). The results extrapolated to infinite dilution have been resolved into cavity formation and interaction terms. The former have been calculated from the equations of the scaled-particle theory. To estimate the contribution from the latter, we have assumed some proportionality between adamantane-solvent and cyclohexane-solvent interactions. This assumption has been verified with the three different solvents for the three studied thermodynamic functions. The diameter of adamantane in solution has been determined to be 6.36 Å. |
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Keywords: | Scaled-particle theory enthalpy of solution volume heat capacity adamantane cyclohexane n-hexane carbon tetrachloride |
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