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 ?
Summary: The rate constants for the dimerization of the reduced products of methyl viologen dication (MV2+) of the processes (a) methyl viologen cation radical (MV+*), (EQUATION) and (EQUATION) and (b) methyl viologen neutral (MV), (EQUATION) and (EQUATION) were obtained through linear scan- / cyclic-voltammetry and the use of Olmstead-Hamilton-Nicholson theory.
0003 g/mg/min which are similar to values obtained in this study, with rate constants of 0.
ij] describe the corresponding reaction rate constants in Scheme 2.
The first volume covers science of the environmental chamber, the role of water in organic aerosol multiphase chemistry: focus on partitioning and reactivity, a critical review of atmospheric chemistry of alkoxy radicals, the role of nitric acid surface photolysis on the tropospheric cycling of reactive nitrogen species, the atmospheric chemistry of halogenated organic compounds, atmospheric reaction rate constants and kinetic isotope effects computed using the HEAT protocol and semi-classical transition state theory, and recent advances in the chemistry of OH and HO2 radicals in the atmosphere; field and laboratory measurements.
The reactions of phosphate bis-ester were strappingly catalysed at different concentrations of CTABr at which pseudo first order rate constants were obtained.
Controlled initial surface roughness of a ball might be attributed to similarity among the damage rate constants (C).
4, the reaction rate constants can be distinguished based on the various temperatures as shown in Table 1.
2] on kinetic rate constants were also examined in order to gain insight into the kinetics of the degradation of pyridine.
In this case the rate constants would be the uncertainty parameters.
The calibration parameters are the dispersion coefficient of the PFD system (the UV chamber) and the inactivation rate constants for the US and the UV chambers.
For the bare sources, the exposure rate constants were also calculated as a function of the photon cutoff energy to demonstrate the sensitivity of this quantity to the choice of emission lines included in the calculations.