rate constant

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rate constant

[′rāt ‚kän·stənt]
(physical chemistry)
Numerical constant in a rate-of-reaction equation; for example, rA = kC aA C bB C cC, where CA ,CB , and CC are reactant concentrations, k is the rate constant (specific reaction rate constant), and a, b, and c are empirical constants.
References in periodicals archive ?
Parameters, including rate constants related to nucleation, formation, and dissociation of embryo as well as the Avrami Constant, could be extracted from the model.
The correlation between reaction rate constants and activation energy can be obtained using Arrhenius equation.
The trend indicates that probably two different mechanisms with different rate constants are controlling the rate of Cu release.
Rate constant calculation for thermal reactions; methods and applications.
15)-(18) include 4 dependent variables (metabolite concentrations), 12 independent variables (maximum reaction rates), 8 rate constants for both incoming and outgoing fluxes and 19 kinetic orders for incoming and 20 kinetic orders for outgoing fluxes.
Key words: rate constant, exothermic process, semi-batch reactor, identification, simulation
In particular, every component of shale oil is a set of compounds with different rate constants of their decomposition.
4] and 5-fsa or 3-fsa the rate constants at different temperatures (10, 15, 20, 25, 30 and 35 [degrees]C) were determined.
Because the initial water activity of the sample was low and quite different to the equilibrium RH (ERH), the effect on the predicted rate constants will be small.
A pseudo-first-order mechanism is proposed and the rate constants (k, [k.
A slab curing computer model utilizes the rate constants and activation energy values obtained from ODR graphs of the rubber obtained at several different temperatures (usually five or six run at 10[degrees]C intervals) over a range normally seen in the production process.