Authors:B. Liu, X. Lv, Z. Tan, Z. Zhang, Q. Shi, L. Yang, J. Xing, L. Sun, and T. Zhang
The molar heat capacity, Cp,m, of a complex of holmium chloride coordinated with L-aspartic acid, Ho(Asp)Cl2·6H2O, was measured from 80 to 397 K with an automated adiabatic calorimeter. The thermodynamic functions HT-H298.15 and ST-S298.15 were derived from 80 to 395 K with temperature interval of 5 K. The thermal stability of the complex was investigated by
differential scanning calorimeter (DSC) and thermogravimetric (TG) technique, and the mechanism of thermal decomposing of
the complex was determined based on the structure and the thermal analysis experiment.
Authors:M. Fujisawa, T. Matsushita, M. A. Khan, and T. Kimura
Excess molar heat capacities of (L-glutamine aqueous solution+D-glutamine aqueous solution) were determined by using a differential scanning calorimeter at temperatures between 293.15 and 303.15 K. Excess molar heat capacities are all negative. Excess molar heat capacities decrease with increasing temperature.
temperature dependence of the molar heat capacities of the tellurites CoTeO3,
MnTeO3 and MnTe6O13
are determined. By statistical manipulation of the values obtained, the parameters
in the equations for the corresponding compounds showing this dependence are
determined using the least-squares method. These equations and the standard
molar entropies are used to determine the thermodynamic functions for T'=298.15 K.
The molar heat capacity Cp,m of 1,2-cyclohexane dicarboxylic anhydride was measured in the temperature range from T=80 to 390 K with a small sample automated adiabatic calorimeter. The melting point Tm, the molar enthalpy ΔfusHm and the entropy ΔfusSm of fusion for the compound were determined to be 303.80 K, 14.71 kJ mol−1 and 48.43 J K−1 mol−1, respectively. The thermodynamic functions [HT-H273.15] and [ST-S273.15] were derived in the temperature range from T=80 to 385 K with temperature interval of 5 K. The thermal stability of the compound was investigated by differential scanning
calorimeter (DSC) and thermogravimetry (TG), when the process of the mass-loss was due to the evaporation, instead of its
properties [ 7 , 8 ] such as molarheatcapacities C p,m of compound at different temperatures, from which many other thermodynamic properties can be calculated for both theoretical and practical purposes.
In the present study, a complex of Erbium
Experimental data of excess molar enthalpy (HmE) and excess molar heat capacity (CpmE) of binary mixtures containing (1-heptanol or 1-octanol)+(diethylamine or s-butylamine) have been determined as a function of composition at 298.15 K and at 0.1 MPa using a modified 1455 Parr solution
calorimeter. The excess molar enthalpy data are negative and show parabolic format over the whole composition range; however,
the excess molar heat capacity values, whose curves show a S-shape, are positive in the 0.0 to 0.7 molar fraction range and
negative between the molar fraction values 0.7 to 1.0. The applicability of the ERAS-model to correlate the excess molar enthalpy
data was tested. The calculated data values are in good agreement with the experimental ones. The experimental behavior of
HmE is interpreted in terms of specific interactions between 1-alkanol and amine molecules.
Authors:Yi-Xi Zhou, Li-Xian Sun, Zhong Cao, Jian Zhang, Fen Xu, Li-Fang Song, Zi-Ming Zhao, and Yong-Jin Zou
aromatic carboxylate co-ligands to assemble into varied polymeric frameworks consisting of one-, two- or three-dimensional structures [ 6 ].
Molarheatcapacities of MOFs at different temperatures have received considerable attention as basic data
Molarheatcapacities of the materials at different temperatures are basic data in chemistry and engineering, from which many other thermodynamic properties such as enthalpy and entropy can be calculated. These parameters are important for
Authors:Chun-Hong Jiang, Li-Fang Song, Cheng-Li Jiao, Jian Zhang, Li-Xian Sun, Fen Xu, Yong Du, and Zhong Cao
in the literature. Molarheatcapacities of the materials at different temperatures are basic data in chemistry and engineering, from which many other thermodynamic properties such as enthalpy and entropy can be calculated. These parameters are
substances. Molarheatcapacities of the materials at different temperatures have attracted many researchers’ attention as basic data in chemistry and engineering, from which many other thermodynamic properties such as enthalpy and entropy can be calculated