The Free Energy, Entropy and Heat Capacity of Bromine and of Hydrogen Bromide from Spectroscopic Data

1933 ◽  
Vol 1 (10) ◽  
pp. 692-695 ◽  
Author(s):  
A. R. Gordon ◽  
Colin Barnes
Keyword(s):  
Heat Capacity ◽  
Free Energy ◽  
Spectroscopic Data ◽  
Hydrogen Bromide ◽  
Energy Entropy

scholarly journals HIGH-TEMPERATURE FREE ENERGY, ENTROPY, ENTHALPY AND HEAT CAPACITY OF THORIUM SULFATE1

1960 ◽  
Vol 64 (7) ◽  
pp. 911-914 ◽  
Author(s):  
S. W. Mayer ◽  
B. B. Owens ◽  
T. H. Rutherford ◽  
R. B. Serrins
Keyword(s):  
Heat Capacity ◽  
Free Energy ◽  
High Temperature ◽  
Energy Entropy

Enthalpy, free energy, entropy and heat capacity of cyclohexane and acetaldehyde

2010 ◽  
Vol 75 (9-10) ◽  
pp. 655-667 ◽  
Author(s):  
E. R. Lippincott ◽  
G. Nagarajan ◽  
J. E. Katon
Keyword(s):  
Heat Capacity ◽  
Free Energy ◽  
Energy Entropy

Statistical Thermodynamics Enthalpy, Free Energy, Entropy, and Heat Capacity of Some Hexafluorides of Octahedral Symmetry

1971 ◽  
Vol 26 (10) ◽  
pp. 1658-1666 ◽  
Author(s):  
G. Nagarajan ◽  
Donald C. Brinkley
Keyword(s):  
Heat Capacity ◽  
Free Energy ◽  
Infrared Absorption ◽  
Infrared Absorption Spectrum ◽  
Point Group ◽  
Structural Data ◽  
Octahedral Symmetry ◽  
Symmetry Point Group ◽  
Rigid Rotator ◽  
Energy Entropy

Abstract A detailed analysis of the molecular structural data and infrared absorption and Raman spectra of the hexafluoride of sulfur, selenium, tellurium, molybdenum, technetium, ruthium, rhodium, tungsten, thenium, osmium, iridium, platinum, uranium, neptunium, and plutonium has been made. These molecules, having the greatest number of symmetry elements of all existing molecules, possess an octahedral symmetry with the symmetry point group Oh. They give rise to six fundamental frequencies of which three are allowed in the Raman spectrum, two are allowed in the infrared absorption spectrum, and one is inactive. The inactive mode in normally determined from the overtones and combinations. On the basis of a rigid rotator and harmonic oscillator model, enthalpy, free energy, entropy, and heat capacity for temperatures from 200 °K to 2000 °K have been computed for these molecules. The results are briefly discussed and compared with available experimental data.

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