The rate of detachment of active chains from their junctions was expressed by an Eyring type equation, while the number of active chains could be calculated by a first-order kinetics
In order to determine the rate and drug transport mechanism of Clarithromycin from controlled release tablets, the dissolution profiles were fitted in various kinetic/mathematical models given as under Zero-Order Kinetics (W=K1t), First-Order Kinetics
[ln (100-W)=In100-K2t], Higuchi Kinetics (W=K4 t ) Hixson Crowell Kinetics (100-W) 1/3 =1001/3-K3t), Korsmeyer's Peppas's Kinetics (Mt/M8 = K5tn).
The Langmuir-Hinshelwood model mentioned equivalent to concern with the pseudo first-order kinetics
of photocatalytic degradation of basic azo dyes .
Conversely, the first-order kinetics
degradation constant decreased in an identical way for all COD-treatments.
The model assumes that the US chamber is the completely mixed flow-through (CMF) system, the UV chamber is the plug-flow with dispersion (PFD) system, and a reaction follows the first-order kinetics
Several researchers, however, have questioned the possibility of the presence of multiple, independent retention sites and stated that a gradual change in slope from one time increment to the next was prevalent, indicating a continual change in the apparent rate constant (kD and precluding the operation of strictly first-order kinetics
for the entire course of reaction time (Jopony and Young 1987; Allen et al.
In this context, first-order kinetics
could be used to evaluate kinetic reaction and rate of current catalytic reaction as shown (Fig.
PME inactivation followed first-order kinetics
with a residual PME activity of 15% at all pressure-temperature combinations used by the researchers.
mandates on/off symmetry, which means that the change in V[O.
7), for the first-order kinetics
a plot of ln(1-[alpha]) against t will yield a straight line, with a slop equal to -k.
The degradation of polymer was included into the models under the premise of first-order kinetics
for the chain scission .
The above rate law equation explain fully well the experimental results obtained for the first-order kinetics
, the plot of 1/[rate] versus 1/[substrate] give rise a straight line with positive intercept which gives the value of k and furnishes an evidence for the formation of complex between substrate and reactive species of the oxidant.