The chemical reaction equilibrium constant and standard molar enthalpy change for the reaction : a spectroscopic and calorimetric investigation

2005 ◽  
Vol 37 (2) ◽  
pp. 187-199 ◽  
Author(s):  
Viktor Ermatchkov ◽  
Álvaro Pérez-Salado Kamps ◽  
Gerd Maurer
Keyword(s):  
Equilibrium Constant ◽  
Chemical Reaction ◽  
Enthalpy Change ◽  
Molar Enthalpy ◽  
Standard Molar Enthalpy ◽  
Calorimetric Investigation ◽  
Reaction Equilibrium

scholarly journals Measuring and Modeling the Solubility of Hydrogen Sulfide in rFeCl3/[bmim]Cl

Processes ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 652
Author(s):  
Huanong Cheng ◽  
Na Li ◽  
Rui Zhang ◽  
Ning Wang ◽  
Yuanyuan Yang ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Hydrogen Sulfide ◽  
Equilibrium Constant ◽  
Chemical Reaction ◽  
Chemical Equilibrium ◽  
Thermodynamic Model ◽  
Equilibrium Thermodynamic ◽  
Mean Relative Error ◽  
The Mean ◽  
Reaction Equilibrium

The solubility of hydrogen sulfide in different mole ratios of ferric chloride and 1-butyl-3-methylimidazolium chloride ionic liquid (rFeCl3/[bmim]Cl, r = 0.6, 0.8, 1.0, 1.2, 1.4) at temperatures of 303.15 to 348.15 K and pressures of 100 to 1000 kPa was determined. The total solubility increased with the increase of pressure and the decrease of temperature. The solubility data were fitted using the reaction equilibrium thermodynamic model (RETM). The mean relative error between the predicted value and the measured value was less than 4%. Henry’s coefficient and the equilibrium constant of chemical reaction at each temperature were calculated. Henry’s coefficient first decreased and then increased with the increase of mole ratio, and increased with the increase of temperature. The equilibrium constant of the chemical reaction followed the same law as Henry’s coefficient. The chemical solubility was related to both Henry’s coefficient and the chemical equilibrium constant. H2S had the highest chemical solubility in FeCl3/[bmim]Cl at a mole ratio of 0.6 and a temperature of 333.15 K. The chemical solubility increased with the increase of pressure.

Complete monotonicity of entropy production in chemical reaction

1981 ◽  
Vol 46 (2) ◽  
pp. 452-456
Author(s):  
Milan Šolc
Keyword(s):  
Entropy Production ◽  
Equilibrium Constant ◽  
Chemical Reaction ◽  
Relative Entropy ◽  
Order Reaction ◽  
Complete Monotonicity ◽  
First Order Reaction ◽  
First Order ◽  
Completely Monotonic ◽  
Derivatives Of

The successive time derivatives of relative entropy and entropy production for a system with a reversible first-order reaction alternate in sign. It is proved that the relative entropy for reactions with an equilibrium constant smaller than or equal to one is completely monotonic in the whole definition interval, and for reactions with an equilibrium constant larger than one this function is completely monotonic at the beginning of the reaction and near to equilibrium.

The standard molar enthalpy of formation of Cs2ZrO3

1987 ◽  
Vol 19 (10) ◽  
pp. 1117-1120 ◽  
Author(s):  
E.H.P Cordfunke ◽  
W Ouweltjes ◽  
P.Van Vlaanderen
Keyword(s):  
Enthalpy Of Formation ◽  
Molar Enthalpy ◽  
Standard Molar Enthalpy

Determination of the standard molar enthalpy of formation of α-AlOOH (diaspore)

1995 ◽  
Vol 27 (4) ◽  
pp. 443-446 ◽  
Author(s):  
Chen Qiyuan ◽  
Zeng Wenming ◽  
Gu Songqing ◽  
Yang Guanqun ◽  
Zhou Huifang ◽  
...  
Keyword(s):  
Enthalpy Of Formation ◽  
Molar Enthalpy ◽  
Standard Molar Enthalpy

Standard Molar Enthalpy of Formation and of Vaporization of Ethyl 3-Oxobutanoate

1995 ◽  
Vol 40 (2) ◽  
pp. 426-428 ◽  
Author(s):  
Manuel A. V. Ribeiro daSilva ◽  
Maria Luisa C. C. H. Ferrao ◽  
Fang Jiye
Keyword(s):  
Enthalpy Of Formation ◽  
Molar Enthalpy ◽  
Standard Molar Enthalpy

Chemical Reaction Equilibrium

2020 ◽  
pp. 273-306
Author(s):  
Bernardo Carreón-Calderón ◽  
Verónica Uribe-Vargas ◽  
Juan Pablo Aguayo
Keyword(s):  
Chemical Reaction ◽  
Reaction Equilibrium
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