Excess Gibbs energy of mixing of 1,2,4-trimethylbenzene and 1,3,5-trimethylbenzene with several nitroparaffins by total intensity Rayleigh light scattering at 30.deg.

1971 ◽  
Vol 75 (24) ◽  
pp. 3728-3732 ◽  
Author(s):  
M. Elizabeth Derrick ◽  
H. Lawrence Clever
Keyword(s):  
Light Scattering ◽  
Gibbs Energy ◽  
Excess Gibbs Energy ◽  
Rayleigh Light Scattering ◽  
Energy Of Mixing ◽  
Gibbs Energy Of Mixing ◽  
Rayleigh Light

scholarly journals Modelling thermodynamic properties of binary Cu–Eu and ternary Al–Cu–Eu melts

2020 ◽  
Vol 8 (2) ◽  
pp. 73-82
Author(s):  
Natalia Kotova ◽  
Natalia Golovata ◽  
Natalia Usenko
Keyword(s):  
Thermodynamic Properties ◽  
Gibbs Energy ◽  
Excess Gibbs Energy ◽  
Model Calculations ◽  
Gibbs Energies ◽  
Excess Gibbs Energies ◽  
Energy Of Mixing ◽  
Gibbs Energy Of Mixing ◽  
Associated Solution Model ◽  
Associated Solution

Model calculations of the whole set of thermodynamic properties of liquid alloys for the binary Cu–Eu and ternary Al–Cu–Eu systems have been performed. Authors used the ideal associated solution model (IAS model) for calculation of the entropies and excess Gibbs energies of mixing for these systems. The binaries were given as the Redlich-Kister polynomials. The thermodynamic properties for the ternary system are described using the Redlich-Kister-Muggianu formalism. A comparison of the surfaces of excess Gibbs energy and entropy of mixing for liquid Al–Cu–Eu alloys at 1350 K demonstrates that the ordering related to the formation of rather strong associates in the Al–Eu system significantly affects the concentration dependence of the excess Gibbs energy of mixing in the liquid phase at this temperature.

Thermodynamics of Mixtures of Aromatic Hydrocarbons with Alkanols Studied by Light Scattering

2001 ◽  
Vol 66 (7) ◽  
pp. 1011-1037 ◽  
Author(s):  
Petr Munk ◽  
Weizhuang Cheng ◽  
Anwei Qin ◽  
Julius Pouchlý
Keyword(s):  
Light Scattering ◽  
Hydrogen Bonds ◽  
Gibbs Energy ◽  
Aromatic Hydrocarbons ◽  
Composition Dependence ◽  
Refractive Indices ◽  
Energy Of Mixing ◽  
Gibbs Energy Of Mixing ◽  
Benzene Toluene ◽  
Thermodynamics Of Mixtures

Measurement of light scattering of mixtures of aromatic hydrocarbons (benzene, toluene, ethylbenzene) and alkanols (methanol, ethanol, propan-1-ol, butan-1-ol, pentan-1-ol) having sufficiently different refractive indices, produced rather reliable thermodynamic data. From these data it was possible to deduce the composition dependence of the change in Gibbs energy of mixing ∆Gmix. These dependences were measured for eleven binary mixtures. A model of alcohol molecules forming linear aggregates which are in equilibrium was developed and used for interpretation of the data. All ∆Gmix data for the eleven mixtures as well as the ∆Hmix data obtained for these mixtures from literature could be interpreted using just two values that characterized the Gibbs energy and enthalpy of the formation of hydrogen bonds. The analysis also yielded plausible results concerning the contact interactions.

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