Gibbs’ thermodynamic potential

Feistel R (2003) A new extended Gibbs thermodynamic potential of seawater. Prog Ocean 58 43-114... 

Equilibrium hydrogen concentration m(P, T) was determined from the lattice constant a(P,T) of hydrogen unit cell at minimum value of the Gibbs thermodynamical potential G P. T) = F(P, T) + PV ... 

Feistel, R., Hagen E., 1998. A Gibbs thermodynamic potential of sea ice. Cold Regions Science and Technology, 28, 83-142. 

Feistel, R., 2005. Numerical implementation and oceanographic application of the Gibbs thermodynamic potential of seawater. Ocean Science, 1, 9-16, http //www.ocean-science.net/os/l/9. 

Feistel, R., Hagen, E., 1995. On the GIBBS thermodynamic potential of seawater. Progress in Oceanography, 36, 249-327. 

The formation of an individual particle at constant temperature and pressure requires additional work equal to a change in the Gibbs thermodynamic potential of the system, Since the state of matter and... 

A ol,P) is the Gibbs thermodynamic potential associated with 3, F is the usual Helmholtz free energy and N is the average number of particles in the system compatible with the value of a ... 

Gibbs thermodynamic potential per unit volume and qs specifies the thermodynamic portion of the 5-th step in the variation of the reaction s Gibbs free energy. 

Secondary twinning is not accompanied by ary shape change of the crystal. It is only possible if the Gibbs thermodynamic potential decreases. Following tensor coordinates of and 5, change sign (see coordinates in brackets) in second twin crystal... 

Let us denote the value of the Gibbs thermodynamic potential per unit volume for the first G(l) and second G(2) twin crystal. Twinning is possible under the condition (see Eqs. (5.80) and (5.81))... 

X-cut of quartz belongs to the mostly used quartz elements for piezoelectric transducers. Uniaxial stress Ti 0 in the x-axis direction does not induce arty twinning because the conditionEq. (7.3) is not satisfied. Gibbs thermodynamic potential does not change under this uniaxial stress. But the twinning is experimentally observed at room temperature for stresses 5-9 x 10 Pa in the laboratory samples as well as for transducers. This must be a consequence of multiaxial stress created due... 

So far, we use the model that assumes the fact that critical nuclei of aU phases, allowed by the phase diagram, appear at once (the unlimited nucleation model). It is known that the growth of a new phase from the nucleus is energetically favorable only in the case of nucleus size exceeding some critical value la, determined from the extremum condition of Gibbs thermodynamic potential. In a one-component substance, the extremum condition is expressed simply by the derivative of G with respect to the nucleus size being equal to zero ... 

Thermodynamics only considers the initial and final states of a system, which are characterized by special thermodynamic parameters. Usually, temperature, pressure, volume, and such characteristic junctions as enthalpy, entropy, internal energy, Helmholtz free energy, Gibbs thermodynamic potential act as such parameters of state. Just these functions and their values characterize the thermodynamic state of a system and... 

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