THERMODYNAMICAL FUNCTIONS FOR DENSE MULTICOMPONENT PLASMAS

1979 ◽  
Vol 40 (C7) ◽  
pp. C7-695-C7-696
Author(s):  
M. M. Gombert ◽  
C. Deutsch ◽  
H. Minoo
Keyword(s):  
Thermodynamical Functions

The influence of hydrogen bonding on the character of N—H and C=O stretching modes in 2-thiopyrrole-1,2-dicarboximide

1984 ◽  
Vol 62 (9) ◽  
pp. 1845-1849 ◽  
Author(s):  
Shanker Ram
Keyword(s):  
Hydrogen Bonding ◽  
Transition Temperature ◽  
Solid State ◽  
Hydrogen Bonds ◽  
Spectral Data ◽  
Infrared Spectra ◽  
Cyclic Dimer ◽  
Dilute Solutions ◽  
Two Phases ◽  
Thermodynamical Functions

The infrared spectra (200–4000 cm−1) of 2-thiopyrrole-1,2-dicarboximide (TPH) in solid and solution forms have been measured as a function of temperature, and a direct correlation has been obtained between the two phases and the type and extent of hydrogen bonding. It is suggested that TPH exists as cyclic dimer in the solid state (below 310 K) and in dilute solutions by the formation of two equivalent hydrogen bonds. At the transition temperature, ~310 K, the cyclic dimer undergoes to the open-cyclic dimer and persists in this structure till 410 K. In addition, the thermodynamical functions ΔH0, and ΔS0 have been estimated using the spectral data in solution.

Isotherms and thermodynamical functions of propene at temperatures between 25° and 150°c and at densities up to 340 amagat (pressures up to 2800 atm)

Physica ◽  
1953 ◽  
Vol 19 (1-12) ◽  
pp. 287-297 ◽  
Author(s):  
A. Michels ◽  
T. Wassenaar ◽  
P. Louwerse ◽  
R.J. Lunbeck ◽  
G.J. Wolkers
Keyword(s):  
Thermodynamical Functions

scholarly journals MICROSCOPIC BLACK HOLE AND UNCERTAINTY PRINCIPLE WITH MINIMAL LENGTH AND MOMENTUM

2013 ◽  
Vol 28 (10) ◽  
pp. 1350029 ◽  
Author(s):  
M. M. STETSKO
Keyword(s):  
Phase Transition ◽  
Heat Capacity ◽  
Black Hole ◽  
Uncertainty Principle ◽  
Emission Rate ◽  
Generalized Uncertainty Principle ◽  
Minimal Length ◽  
Schwarzschild Black Hole ◽  
Evaporation Time ◽  
Thermodynamical Functions

We investigate a microscopic black hole in the case of modified generalized uncertainty principle with a minimal uncertainty in position as well as in momentum. We calculate thermodynamical functions of a Schwarzschild black hole such as temperature, entropy and heat capacity. It is shown that the incorporation of minimal uncertainty in momentum leads to minimal temperature of a black hole. Minimal temperature gives rise to appearance of a phase transition. Emission rate equation and black hole's evaporation time are also obtained.

scholarly journals Quantum van der Waals and Walecka models of nuclear matter

2017 ◽  
Vol 26 (10) ◽  
pp. 1750061 ◽  
Author(s):  
R. V. Poberezhnyuk ◽  
V. Vovchenko ◽  
D. V. Anchishkin ◽  
M. I. Gorenstein
Keyword(s):  
Nuclear Matter ◽  
Van Der Waals ◽  
Mean Field Theory ◽  
Mean Field ◽  
Universality Class ◽  
Number Density ◽  
Nuclear Ground State ◽  
Nucleon Number ◽  
Two Parameters ◽  
Thermodynamical Functions

A comparable study of the quantum van der Waals (QvdW) and Walecka models of nuclear matter is presented. Each model contains two parameters which characterize the repulsive and attractive interactions between nucleons. These parameters are fixed in order to reproduce the known properties of the nuclear ground state. Both models predict a first-order liquid-gas phase transition and a very similar behavior in the vicinity of the critical point. Critical exponents of the QvdW model are studied both analytically and numerically. There are important differences in the behavior of the thermodynamical functions of the considered models at large values of the nucleon number density. At the same time, both models fall into the universality class of mean-field theory.

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