Standard thermodynamic functions of GeS :Bi (1 < x < 2) glasses

2019 ◽  
Vol 509 ◽  
pp. 74-79 ◽  
Author(s):  
А.М. Kut'in ◽  
А.D. Plekhovich ◽  
К.V. Balueva ◽  
М.V. Sukhanov ◽  
I.V. Skripachev
2018 ◽  
Vol 385 ◽  
pp. 175-181 ◽  
Author(s):  
Mirsalim M. Asadov ◽  
Solmaz N. Mustafaeva ◽  
Ulviya A. Hasanova ◽  
Faiq M. Mamedov ◽  
Ozbak M. Aliev ◽  
...  

The thermodynamic analysis and the X-ray Phase Analysis (XPA) of the FeS–PbS–In2S3system were carried out. It is shown that along with the triple phases of MIn2S4(M – Fe, Pb) and Pb6In6S21, the Fe1.5Pb5.5In10S22phase also participates in the triangulation of the system. The standard thermodynamic functions for the formation of MIn2S4(M-Fe, Pb), Pb6In6S21and Fe1.5Pb5.5In10S22are estimated. An isothermal section of the FeS–PbS–In2S3system at 298 K is constructed. It is shown that the activation energy of the impurity level located in the band gap of Fe1.5Pb5.5In10S22is equal to 0.19 eV.


2019 ◽  
Vol 18 (03n04) ◽  
pp. 1940009
Author(s):  
N. Podolsky ◽  
M. Lelet

Isobaric heat capacities of C[Formula: see text](OH)[Formula: see text] and C[Formula: see text](OH)[Formula: see text] fullerenols were measured using adiabatic calorimetry in the temperature range of 0–320[Formula: see text]K along with standard thermodynamic functions: [Formula: see text], [[Formula: see text]] and [[Formula: see text]]. Furthermore, the molar entropy of formation and the molar third law entropy of C[Formula: see text](OH)[Formula: see text] and C[Formula: see text](OH)[Formula: see text] in crystalline state at 298.15[Formula: see text]K were calculated.


1985 ◽  
Vol 63 (4) ◽  
pp. 789-792 ◽  
Author(s):  
Norman H. Sagert ◽  
Danny W. P. Lau

The distribution of four branched chain octanols, 3-ethyl-3-hexanol, 4-ethyl-3-hexanol, 2-ethyl-4-methylpentanol, and 4-octanol, has been measured between dodecane and water. Measurements were made at alcohol concentrations in the dodecane of less than 0.1 mol/dm3, and as a function of temperature from 10 °C to 35 °C. From these distribution data, standard thermodynamic functions for transfer were calculated. Standard Gibbs energies of transfer from water to dodecane at 25 °C were in the range −14.1 to −15.1 kJ/mol, whereas the standard enthalpies of transfer at 25 °C varied from 29 to 39 kJ/mol. Thus, the change in the standard enthalpy tends to inhibit transfer, but a large standard entropy of transfer results in dodecane being the favoured phase.


2009 ◽  
Vol 54 (6) ◽  
pp. 1680-1684
Author(s):  
Alexey V. Markin ◽  
Natalia N. Smirnova ◽  
Elena A. Gorina ◽  
Sophia N. Titova ◽  
Anatoly M. Obédkov ◽  
...  

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