Excess molar enthalpies and excess molar heat capacities of (2-butanone + cyclohexane,or methylcyclohexane,or benzene,or toluene,or chlorobenzene,or cyclohexanone) atT = 298.15 K |
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| Affiliation: | 1. Department of Chemistry, S. V. University, Tirupati 517502, India;2. Department of Chemistry, S. V. Arts College (TTD''s), Tirupati 517502, India;3. Department of Chemistry, P.V.K.N. Govt. College, Chittoor 517002, India;1. Department of Physics, Nehru Memorial College (Autonoums), Puthanampatti, 621 007,Tamil Nadu, India.;2. State Key Laboratory of Multiphase Flow in Power Engineering, Xi''an Jiaotong University, Shaanxi, 710049, P. R. China.;3. Department of Chemistry, S.V.Arts Degree & P.G.College (T.T.D''S), Tirupati, 517502, A.P, India |
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| Abstract: | Excess molar enthalpies of (2- butanone + cyclohexane, or methylcyclohexane, or toluene, or chlorobenzene, or cyclohexanone) and excess molar heat capacities of (2- butanone + benzene, or toluene, or chlorobenzene, or cyclohexanone) were measured atT = 298.15 K. Aliphatic systems were endothermic and the chlorobenzene system was exothermic. On the other hand, the toluene system changed sign to be S-shaped similar to the benzene system reported by Kiyohara et al. The values of excess molar enthalpies of the present mixtures were slightly larger than the corresponding mixtures of cyclohexanone already reported. Excess molar heat capacities of aromatic systems were characteristically S-shaped for the mixture containing aromatics. The values of the present mixtures were less than the corresponding mixtures of cyclohexanone. The mixture (2-butanone + cyclohexanone) was endothermic forHmE and negative for Cp,mE. |
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