The Equilibrium Thermodynamic Functions

By finding the equilibrium heat capacities of the solid and liquid [Cp(vibration), Cp(liquid)], as well as the equilibrium transition parameters T, A//f(100%), all thermodynamic functions, enthalpy (//), entropy (5), and Gibbs free energy (G), can be calculated as a function of temperature for equilibrium conditions [3]. All recommended results of equilibrium quantities and parameters, for over 200 polymers, have been collected and organized as part of the ATHAS Data Bank, a part of which is available online [20]. 

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The equilibrium thermodynamic functions describing the retention process are essentially related to the net retention volume. For example, the intermolecular adsorption of Gibbs free energy, —AGa, for one mole of solute vapor from a reference gaseous state with the partial pressure, Po, to a reference adsorbed state with the equilibrium spread pressure (or two-dimensional pressure), no, is given as [115]... 

The equilibrium thermodynamic functions of the system follow from the Helmholtz free energy A (N, V, T),... 

The Equilibrium Thermodynamic Functions, 275 Other Factors Affecting the Meiting Process of Polymer Crystals, 277... 

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