Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Equilibrium rate constant

Polystyryl anion association equilibrium rate constant... [Pg.391]

E] enzyme concentration [S] substrate concentration [ES] concentration of the enzyme-substrate complex [P] product concentration ki association equibbrium rate constant k i dissociation equilibrium rate constant (rate constant of the back reaction). [Pg.241]

Lattice Points positions in a unit cell occupied by atom, molecules, or ions Law of Definite Proportion law that states that different samples of the same compound always contain elemental mass percentages that are constant Law of Mass Action mathematical expression based on the ratio between products and reactants at equilibrium, an equation to determine the equilibrium rate constant Law of Multiple Proportions law that states when two elements combine to form more than one compound that the mass of one element compared to the fixed mass of... [Pg.343]

Section Type Auxiliary concentrations Mean diffusion Equilibrium Rate constant ... [Pg.328]

If this reaction is observed polarimetrically, the equilibrium rate constant obtained is equal to the sum of the tautomerization rate constants (Ki -f- K. i) for the overall reaction, as described above (20). Therefore, no matter what the path or the mechanism of the mutarotation phenomenon, the data obtained polarimetrically are completely explained by the above overall configuration change. [Pg.223]

With this in mind, a forward equilibrium rate constant for the electrodeposition reaction Eq. (9) under nonstandard conditions is... [Pg.259]

TST provides a means to evaluate the equilibrium rate constant, that is the rate constant for an equilibrium ensemble of reactants described by a Boltzmann distribution of states... [Pg.68]

The equilibrium hypothesis is certainly correct when the whole system is at equilibrium, so that rates calculated on its basis should be valid at equilibrium. If the hypothesis were in error before a reaction has come to equilibrium, rate constants would be expected to change as equilibrium is approached. There is no evidence that this ever happens. [Pg.117]

These concentrations are determined by eight equilibria characteried by eight equilibrium rate constants (see Definitions for Scheme 1) related to each other ... [Pg.47]

The completely rigorous equilibrium rate constant can also be written in the form of Eq. (11), where for a bimolecular reaction the rigorous expression for the cumulative reaction probability is (17). [Pg.396]

The specific rate constants and equilibrium rate constants are independent of total pressure. [Pg.35]

A somewhat different approach to hot atom reactions has been taken by Keizra, who examined the evolution with time of the probability distribution of hot-atom energies. If the reaction rate is much smaller than the collision frequenqy the probability distribution relaxes to a steady state, which can be used to d ne hot-atom rate constants. The characterization of the hot-atom distribution in terms of a time-dependent hot-atom temperature was explored, and it was shown that under conditions where the hot-atom distribution becomes steady the pseudo-first-order rate constant differs from the equilibrium rate constant only by the appearance of the steady-state temperature. [Pg.105]

We note again that the thermal rate constant so obtained may differ from that obtained from the flowing afterglow technique in the case of a fast reaction. For the latter case, the initial Maxwellian velocity distribution is maintained, whereas in the present case, it is not. In such a case, the plot of Is Ip against delay time would exhibit curvature and the equilibrium rate constant would come from the slope in the limit of zero delay time this effect has not been observed. [Pg.148]

The adsorption of surface-active molecules from a bulk phase to a surface or interface is governed by an equilibrium rate constant, and the adsorption occurs at any... [Pg.252]

Advancements in TST have been well documented in the literature over the past 23 years [9-16]. Much of the work on TST has focused on understanding the dynamical foundations of the theory and the extension of the theory to allow for quantitatively accurate estimates of rate constants. Advancements in these areas can be attributed to the fact that the TST expression for the classical equilibrium rate constant can be formulated by making a single approximation, Wigner s fundamental assumption. [Pg.43]

Hildebrand solubility parameter Hansen three-dimensional solubility parameter Hydrogen bonding in polymer blends Association model Combinatorial entropy Chemical and physical forces Equilibrium rate constant... [Pg.87]

Two dimensionless equilibrium constants were found necessary to adequately describe the self-association of OH groups. The formation of dimers with an equilibrium rate constant of K2 and higher repeat multimer complex with an equilibrium rate constant of K/. [Pg.94]

Coleman and Painter [5] have developed an iterative least squares fitting procedure to obtain the best fit of experimental data. The fraction of OH groups that participate in hydrogen bonding is related to the dimensionless equilibrium rate constants K2 and in Equation (4.22) ... [Pg.94]

Thermodynamics of reversible homopolymerization and copolymerization are revisited. The equilibrium rate constant is expressed as a function of free energy. Methods to calculate the ceiling and floor temperature are outlined. [Pg.361]


See other pages where Equilibrium rate constant is mentioned: [Pg.241]    [Pg.225]    [Pg.119]    [Pg.339]    [Pg.148]    [Pg.217]    [Pg.163]    [Pg.494]    [Pg.274]    [Pg.2361]    [Pg.12]    [Pg.68]    [Pg.69]    [Pg.71]    [Pg.313]    [Pg.115]    [Pg.238]    [Pg.47]    [Pg.82]    [Pg.17]    [Pg.90]    [Pg.274]    [Pg.94]    [Pg.94]    [Pg.95]    [Pg.99]    [Pg.310]    [Pg.238]    [Pg.29]   
See also in sourсe #XX -- [ Pg.340 ]




SEARCH



Rate-equilibrium

© 2024 chempedia.info