Some Kinetic Considerations

Best, J. B. (1955). The interference of intracellular enzymatic properties from kinetic data obtained on living cells. I. Some kinetic considerations regarding an enzyme enclosed by a diffusion barrier, J. Cell. Comp. Physiol., 46, 1-27. 

Let us now turn to some kinetic considerations of NAC reduction. As an example, consider the time courses of nitrobenzene (NB) concentration in 5 mM aqueous hydrogen sulfide (H2S) solution in the absence and presence of natural organic matter (Fig. 14.7). As is evident, although reduction of NB by H2S to nitrosobenzene and further to aniline (Eq. 14-31) is very favorable from a thermodynamic point of view (see Fig. 14.4), it seems to be an extremely slow process. However, when DOM is added to the solution, reduction occurs at an appreciable rate (Fig. 14.7). In order to understand these findings, some general kinetic aspects of redox reactions involving NACs should be recognized. 

The second reason is closely related to the time scale of the experiment. This merits some kinetic considerations. Arrhenius activation energy of the homolytic decomposition of AIBN in toluene is l43kJmol 1 and log A is 17.33 (32). The Arrhenius parameters are not very sensitive to the solvent (33). Not all radicals produced by AIBN decomposition yield ROO radicals, because of reaction (17)... 

Some Kinetic Considerations of Chemical Vapour Deposition (CVD) Processes... 

Some kinetic considerations of chemical vapour deposition processes Ch. 17... 

J. P. Berry, Some Kinetic Considerations of the Griffith Criterion for Fracture, Journal of Mechanics and Physics of Solids, 8, 194-216 (1960). 

In anaerobic (or microaerophilic) environments, sulfide accumulates until the solution becomes saturated with a mineral phase for which precipitation kinetics are favorable. Labrenz et al. (2000) and Druschel et al. (2002) present a geochemical model that predicts the sequence of precipitation based on the solution composition and some kinetic considerations. They show that formation of monomineralic deposits of nanoparticulate metal sulfide phases can occur if metals are resupplied by fluid flow at... 

Although equilibrium calculations justify the use of the hypothetical species, H2CO3, there are some kinetic considerations that must be addressed. A simple experiment will illustrate the problem. " ... 

G. Symmetry Numbers, Optical Isomers, Entropy of Mixing and Some Kinetic Considerations... 

In this chapter, aromatic amines, sources and their environmental impact is outlined. The available methods for aromatic amines monitoring are described and degradation methods are reviewed, with special emphasis on biodegradation. Various parameters affecting the biodegradation, such as the type of electron acceptors, and some kinetic considerations are revised. 

The majority of this chapter is devoted to thermodynamic prediction. The last section mentions some kinetic considerations about redox reactions. 

Color and the Colors of Complexes 24-8 Aspects of Complex-Ion Equilibria 24-9 Acid-Base Reactions of Complex Ions 24-10 Some Kinetic Considerations 24-11 Applications of Coordination Chemistry... 

Some Kinetic Considerations—Also important in determining properties of a complex ion is the rate at which the ion exchanges ligands between its coordination sphere and the solution. Exchange is rapid in a labile complex and slow in an inert complex. 

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