For the gas phase decomposition of ethyl chloroformate, CICOOC₂Hs C₂H₂Cl + CO₂ the rate constant in s has been determined at several temperatures. When In k is plotted against the reciprocal of the Kelvin temperature, the resulting linear plot has a slope of -1.48 x 10 K and a y-intercept of 24.6. The value of the rate constant for the gas phase decomposition of ethyl chloroformate at 458 K is (Enter your answer to one significant figure.) Submit Answer Retry Entire Group 1 more group attempt remaining

For the gas phase decomposition of ethyl chloroformate, CICOOC₂Hs C₂H₂Cl + CO₂ the rate constant in s has been determined at several temperatures. When In k is plotted against the reciprocal of the Kelvin temperature, the resulting linear plot has a slope of -1.48 x 10 K and a y-intercept of 24.6. The value of the rate constant for the gas phase decomposition of ethyl chloroformate at 458 K is (Enter your answer to one significant figure.) Submit Answer Retry Entire Group 1 more group attempt remaining

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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For the overall gas-phase reaction of the formation of phosgene (Cl₂CO) from carbon monoxide and chlorine, the following mechanism has been proposed: Cl₂ + M2CI+M k_1 CI+CO+MCICO + M k_2 k3 CICO + Cl₂C₁₂CO+CI Derive the expected rate law assuming [M] is large and constant, and using: (a) The equilibrium assumption for the first two steps. (b) Instead using the steady state assumption for any intermediates. (c) Why does the reaction become zeroth order in [CO] in the steady state case? (d) The actual rate law is 3/2 order in [Cl₂] and first order in [CO]. Which mechanism is likely correct? (e) Is the other mechanism possible, based on the observed orders?
What is meant by the term elementary reaction? What is the difference between a unimolecular and a biomolecular elementary reaction? What is a reaction mechanism? What is meant by the term rate determining step?
For the gas phase decomposition of nitrogen dioxide at 383 °C 2 NO22 NO + 02 the average rate of disappearance of NO, over the time period from t = 0 s to t = 3 s is found to be 6.17x10-2 M s1. The average rate of formation of 02 over the same time period is Ms-1.
The following data are for the gas phase decomposition of dinitrogen pentoxide at 335 K.N2O5(g) 2 NO2(g) + ½ O2(g) [ N2O5], M 8.95×10-2 4.48×10-2 2.24×10-2 1.12×10-2 time, s 0 98.3 197 295 Hint: It is not necessary to graph these data.(1)The half life observed for this reaction is s .(2)Based on these data, the rate constant for this _______zerofirstsecond order reaction is s -1.
For the gas phase decomposition of nitrogen dioxide at 383 °C 2 NO2 2 NO +02 the following data have been obtained: [NO2], M time, s 6.85x10 2 3.25x102 2.13x102 0 30.0 60.0 1.55x10-2 90.0 The average rate of disappearance of NO2 over the time period from t = 30.0 s to t = 60.0 s is Submit Answer Retry Entire Group 8 more group attempts remaining Ms.
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For the gas phase decomposition of bromoethane, CH;CH,Br >C,H4 + HBr -1 the rate constant in s has been determined at several temperatures. When In k is plotted against the reciprocal of the Kelvin temperature, the resulting linear plot has a slope of-2.63x104 K and a y-intercept of 29.6. The value of the rate constant for the gas phase decomposition of bromoethane at 703 K is -1 (Enter your answer to one significant figure.)
For the gas phase decomposition of nitrogen dioxide at 383 °C 2 NO,2 NO + 02 the average rate of disappearance of NO2 over the time period from t = 0 s to t = 31 s is found to be 1.99x10-3 M s1. The average rate of formation of O2 over the same time period is Ms1.
For the gas phase decomposition of t-butyl acetate, CH3COOC(CH,))3– 3/3 (CH,)2C=CH, + CH,COOH 3/2 the rate constant has been determined at several temperatures. When In k in s is plotted against the reciprocal of the Kelvin temperature, the resulting linear plot has a slope of -2.04×104 K and a y-intercept of 30.7. The activation energy for the gas phase decomposition of t-butyl acetate is kJ/mol.
Use the References to access important values if needed for this question. of cyclopropane to propene at 500 °C The rearrangement (CH₂)3 CH3 CH=CH2 is first order in (CH2)3 with a rate constant of 6.70 x 10- 4 S -1 If the initial concentration of (CH₂)3 is 0.141 M, the concentration of (CH₂)3 will be 0.0180 M after s have passed. Submit Answer Retry Entire Group 7 more group attempts remaining
For the gas phase decomposition of 1-chloropropane, CH;CH,CH,CICH;CH=CH, + HC1 the rate constant in s' has been determined at several temperatures. When In k is plotted against the reciprocal of the Kelvin temperature, the resulting linear plot has a slope of -2.77x10ʻ K and a y-intercept of 31.0. The value of the rate constant for the gas phase decomposition of l-chloropropane at 708 K is (Enter your answer to one significant figure.)
The gas phase decomposition of hydrogen peroxide at 400 °C H,O2(gH,0(g) +¾ O2(g) is second order in H2O2 with a rate constant of 0.650 M- s-1 If the initial concentration of H,O, is 0.218 M, the concentration of H,0, will be |Mafter 58.3 seconds have passed.