Excess Thermodynamic Functions of the Systems Cyclohexane+Isomeric Xylenes

Thermodynamic Systems and State Functions

Excess Functions

Excess functions ........................................................................................................................................ 1 Mathematical explanation ..................................................................................................................... 1 Physical example: Molar volume of a pure substance ................................................

Excess Functions

Excess functions ........................................................................................................................................ 1 Mathematical explanation ..................................................................................................................... 1 Physical example: Molar volume of a pure substance ................................................

Theoretical study of the solvent effects on the thermodynamic functions of Alanine and Valine Amino Acids

Using Gaussian 03, software the thermodynamic functions such as Gibbs free energy, G, Enthalpy, H, and Entropy, S, of Alanine and Valine amino acids were theoretically studied at different solvents. First, the Density Functional Theory (B3LYP) level with 3-21G, 6-31G and 6-31+G basis sets were employed to optimization of isolated Alanine and Valine amino acids in the gas phase. Moreover, Vib...

Analytic and Clustering Properties of Thermodynamic Functions and Distribution Functions for Classical Lattice and Continuum Systems*

Our most complete results concern the Ising spin system with purely ferromagnetic interactions in a magnetic field H (or the corresponding lattice gas model with fugacity z = const. exp(—2 m H β) where m is the magnetic moment of each spin). We show that, in the limit of an infinite lattice, (i) the free energy per site and the distribution functions ne(x19 . . .,xs; β,z) are analytic in the tw...