frequency factor

frequency factor

[′frē·kwən·sē ‚fak·tər]
(physical chemistry)
The constant A (or ν) in the Arrhenius equation, which is the relation between reaction rate and absolute temperature T ; the equation is k = Ae- (Δ Hact/ RT), where k is the specific rate constant, Δ Hactis the heat of activation, and R is the gas constant.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
In the first linear zone, the apparent activation energy and frequency factor were found to be in the range of 63.1-94.2 kJ/mol and 9.3E+3-5.03E+6, respectively.
The frequency factor (A) and activation energy ([E.sub.a]) were obtained using Arrhenius and Kissinger methods.
where [D.sub.0] is the temperature independent frequency factor, [k.sub.B] is the Boltzmann constant, and T is the temperature.
The activation energy [E.sub.A] of this relaxation is 1.32 [+ or -] 0.08 eV/atom (but may change with composition), and the frequency factor [k.sub.0] is [10.sup.15.6[+ or -]1] [s.sup.-1].
In [9] manage the interference based on fractional frequency reuse scheme; here the frequency factor is reused in HetNet in LTE advanced.
Before proceeding to tackle the actual clustering phenomena to formulate the frequency factor [omega], we will very briefly sketch the procedure and final result that have been successfully developed to fulfill objective (A) of the work, whereby the full, more accurate, four-level process scheme of Fig.
Key Words: Probable Maximum Precipitation, Hershfield method, Gumble method, Log Pearson Type- III method, Frequency factor

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