For the gas phase isomerization of methyl cis-cinnamate,cis-C6H5CH=CHCOOCH3trans-C6H5CH=CHCOOCH3the rate constant in s-1 has been determined at several temperatures. When ln k is plotted against the reciprocal of the Kelvin temperature, the resulting linear plot has a slope of -2.09×104 K and a y-intercept of 24.3. The value of the rate constant for the gas phase isomerization of methyl cis-cinnamate at 660 K is _______ s-1. (Enter your answer to one significant figure.) Submit Answer

For the gas phase isomerization of methyl cis-cinnamate,cis-C6H5CH=CHCOOCH3trans-C6H5CH=CHCOOCH3the rate constant in s-1 has been determined at several temperatures. When ln k is plotted against the reciprocal of the Kelvin temperature, the resulting linear plot has a slope of -2.09×104 K and a y-intercept of 24.3. The value of the rate constant for the gas phase isomerization of methyl cis-cinnamate at 660 K is _______ s-1. (Enter your answer to one significant figure.) Submit Answer

Physical Chemistry

2nd Edition

ISBN:9781133958437

Author:Ball, David W. (david Warren), BAER, Tomas

Publisher:Ball, David W. (david Warren), BAER, Tomas

Chapter20: Kinetics

Section: Chapter Questions

Problem 20.38E: List at least four experimentally determined parameters that you, an experimenter, can define when...

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For the gas phase isomerization of methyl cis-cinnamate,cis-C6H5CH=CHCOOCH3trans-C6H5CH=CHCOOCH3the rate constant in s-1 has been determined at several temperatures. When ln k is plotted against the reciprocal of the Kelvin temperature, the resulting linear plot has a slope of -2.09×104 K and a y-intercept of 24.3. The value of the rate constant for the gas phase isomerization of methyl cis-cinnamate at 668 K is______ s-1. (Enter your answer to one significant figure.)
For the gas phase decomposition of t-butyl propionate,C2H5COOC(CH3)3(CH3)2C=CH2 + C2H5COOHthe rate constant in s-1 has been determined at several temperatures. When ln k is plotted against the reciprocal of the Kelvin temperature, the resulting linear plot has a slope of -1.97×104 K and a y-intercept of 29.5. The value of the rate constant for the gas phase decomposition of t-butyl propionate at 530 K is _______s-1. (Enter your answer to one significant figure.)
Calculate the magnitude of the diffusion-controlled rate constant at 298 K for a species in (i) decylbenzene, (ii) concentrated sulfuric acid. The viscosities are 3.36 cP and 27 cP, respectively.
Calculate the magnitude of the diffusion-controlled rate constant at 320 K for the recombination of two atoms in benzene, for which η = 0.601 cP. Assuming the concentration of the reacting species is 2.0 mmol dm−3 initially, how long does it take for the concentration of the atoms to fall to half that value? Assume the reaction is elementary.
(a) Most commercial heterogeneous catalysts are extremelyfinely divided solid materials. Why is particle sizeimportant? (b) What role does adsorption play in the actionof a heterogeneous catalyst?
Given the following data for the NH4+ + NO2- → N2 + 2H2O reaction Trial [NH4+] [NO2-] Rate 1 0.015 M 0.020 M 0.020 M/s 2 0.030 0.020 0.040 3 0.015 0.010 0.005 The rate constant k is _____.
Give the values of the following: Slope - [Select from 1.35x10^4, -1.09x10^4, 1.09x10^4, -1.35x10^4] y-intercept - [Select from -27.8, 27.8, 37.4, -37.4] Pearson coefficient (R) - [Select from -1.000, -0.962, -0.982] activation energy of this reaction in kJ/mol = [Select from 1.13x10^5, 90.6, 112.51] collision frequency factor A= [Select from 1.82x10^16, 1.54x10^14, 1.15x10^12]
It has been found that in acid solution (greater than 1M H3O+) the rate expression rate for the reaction of H2O2 with I- is of the form : rate= k2[H2O2][I-][H3O+], where k2 = .25L2*mol-2*s-1 at 25C. Therefore, the rate law over the whole range of acidity from very acid solutions to a neatural solution is given be a two-term rate expression: rate = k1[H2O2][I-] + K2[H2O][I-][H3O+] Where K1 has the value of .0115L*mol-1*s-1 at 25C. Compare the relative magnitudes of these two terms under the conditions employed in your rate measurements for mixture 1. ( you should find what that the second term makes a negligible contribution to the reaction rate at H3O+ smaller than 3 x 10 -4) mixture 1 concentrations H2O2 = 5.3 x10-5 I- = 8.3 x 10 -6 H3O = 10-5
Differential EQN: Bruce Wayne analyzes a kryptonite in order to prepare if ever Clark Kent becomes rogue. The former studieda kryptonite and found that it decomposes at a rate proportional to the quantity of kryptonite present.Suppose that it is found that in 25 years approximately 1.1% of a certain quantity of kryptonite hasdecomposed. Determine how long it will take until 50% of the original amount of kryptonite dissipates. pls. provide complete solution with explenation. the formula we use is : dx/dt=kx
Calculate the magnitude of the diffusion-controlled rate constant at 298 K for a species in (i) water, (ii) pentane. The viscosities are 1.00 × 10−3 kg m−1 s−1 and 2.2 × 10−4 kg m−1 s−1, respectively.
In the dimerization of methyl radicals at 25 °C, the experimentally determined frequency factor is 2.4 × 1010 dm3 mol−1 s−1. What are (a) the reactive cross-section, and (b) the steric factor for the reaction given that the C–H bond length is 154 pm?
Distinguish between kinetic and the rmodynamic control of a reaction. Suggest criteria for expecting one rather than the other.