Gibbs free energy explained

This shows that Eqs. (1) and 2) are basically relationships between the Gibbs free energies of the reactions under consideration, and explains why such relationships have been termed linear free energy relationships (LEER). 

Thermodynamics has explained the puzzling form of K it is a direct consequence of Eq. 4b, which shows how the Gibbs free energy of a substance depends on its activity. 

Coupling-in-series Reactions are said to be coupled-inseries when the product of one reaction is the substrate for the next reaction the principle underlying this coupling is explained by reference to the Gibbs free energy equation. In the reaction A B, in the hypothetical pathway S —> P, reaction A to B is catalysed by enzyme E2 as follows ... 

The Gibbs free energy equation explains why glucose 6-phosphate cannot be formed, in vivo, from glucose and phosphate, as follows ... 

The principle nnderlying this coupling is also explained by reference to the Gibbs free energy eqnation. An example, which iUnstrates the principle, is the phosphorylation of glncose in the reaction catalysed by the enzyme hexokinase ... 

Predictions about the direction of a reaction based on Gibbs free energy or Le Chatelier s principle are said to be thermodynamic. not kinetic. Explain what this means. 

Fig. 7. Diagram of Gibbs free energy AG for the ion transfer through a passive layer with a Free Activation energy AG between two favoured sites for anions (interstitials or vacancies) under the influence of a high electrical field strength and without field (horizontal curve) explaining the high field mechanism for oxide growth.

Johonnott [314] explained stratification with alternating molecular forces of attraction and repulsion when a black film thins. Later, Keuskamp and Lyklema [352] pointed out that this phenomenon is caused by oscillation in the Gibbs free energy of the film when its thickness is changed. Two theories have emerged to account for these oscillations in the free... 

Figure 3 (21) explains the effect of rigidity on T. Because the Gibbs free energy change for the melting process must be zero, the melting... 

For QDs with tCl-l,2-BQ at x=5, the observed variation of PL quenching efficiency on is explained by the dependence of the photoinduced electron transfer rate constant on the Gibbs free energy ACf for PET in the normal region ... 

The concepts of enthalpy (H) and entropy (S) are basic to the definitions of Gibbs free energy, chemical potential, and the equilibrium constant (K ), and allow us to predict the effect of temperature on G and Kg. We will also see that entropy is a measure of the state of order-disorder in solids and solid solutions, and helps explain the stabilities of aqueous complexes. 

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