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energy has been derived from the Arrhenius plot on the base of mean values of reaction rate constants from experiments at various temperatures. The values of activation energy E a and the values of pre-exponential factor k 0 are given in

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the apparent activation energies E a of conductivity ( Table 2 ), evaluated from the linear sections of lnσ versus 1/T plots, also indicate different type of electrical behavior on both samples. The changes can be ascribed to different conductivity

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substrates was studied in the range 30 to 50 °C with a constant catalyst and substrate concentration. The rate was found to be dependent on the temperature (T) of the system. The activation energy calculated from the Arrhenius plot ( Fig. 3 ) along with

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Reaction Kinetics, Mechanisms and Catalysis
Authors: R. Thinesh Kumar, N. Clament Sagaya Selvam, T. Adinaveen, L. John Kennedy, and J. Judith Vijaya

Crystallite size, activation energy (E a ) and thermoelectric power measurements (TEP) of the Sr(II)-added CoAl 2 O 4 nanocatalysts

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.28 343 2.915452 4.90 ± 0.55 10.05 ± 1.47 3.93 ± 0.37 The slopes and the activation energy were

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difficult hydrocarbons to be activated since its molecule contains only four uniform and strong C–H bonds. The breaking of the first C–H bond is generally regarded as the rate determining step [ 1 , 2 ]. On the same catalysts, its overall activation energy

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slowed with the addition of chromate, but the activation energy is unchanged. Also, the Avrami–Erofeev model was found to best describe the leaching the chromia-promoted cobalt catalysts. In the present paper, Raney metal type Co–Al alloy

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reaction rate constants k for 80, 100, 120, and 140 °C with 95% confidence limit were 0.0083 ± 0.0024, 0.0177 ± 0.0028, 0.0334 ± 0.0001, and 0.0467 ± 0.0001 min −1 , in order. From the Arrhenius plot shown in Fig. 6 , the activation energy was also

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activation energies (Δ E 0 is equal to activation energy in 0 K) from the DFT methods, the MPW1PW91/6-31++G** results are in good agreement with the experimental data [ 2 – 4 ] and show that the barrier height of the decomposition of compounds 1 – 3 is 48

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parameters for every individual TPR process, i.e. the activation energy (E), the pre-exponential factor (A) and the conversion function, were determined by changing their values iteratively until a good fit between the computed and experimental curve was

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