A reaction has the following proposed mechanism: A2(g) + B(s)-> A₂B(s) (fast) A2B(s)-> A(g) + AB(s) (slow) AB(s) + C(g) -> AC(g) + B(s) (fast) A(g) + C(g) -> AC(g)(fast) For this mechanism, the species B would best be classified as a(n) heterogeneous catalyst homogeneous catalyst intermediate transition state structure product of the overall reaction

A reaction has the following proposed mechanism: A2(g) + B(s)-> A₂B(s) (fast) A2B(s)-> A(g) + AB(s) (slow) AB(s) + C(g) -> AC(g) + B(s) (fast) A(g) + C(g) -> AC(g)(fast) For this mechanism, the species B would best be classified as a(n) heterogeneous catalyst homogeneous catalyst intermediate transition state structure product of the overall reaction

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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The following mechanism has been suggested for the reaction: H:O2 + 2H* + 21-→ I2 + 2H:0 H:O2 +I-+ HOI + OH- OH-+H* + H;O HOI + H* +I-1+H:O Slow Fast Fast Identify the rate law that is consistent with this mechanism. Multiple Choice Rate - k(H2021) Rate - k(HOIIOH] Rate - K[HOITH'I] Rate - K(H202?H?
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2. Imagine you run a reaction whose free energy of activation (AG*) is 18 kcal/mol. If it were a first order reaction, its’ half life (the time for half the starting material to go away) or half the product to form (assuming a 100% yield) would by In2/k where k is the rate constant. How long will it take for the reaction to be done if you run the reaction in an ice-salt bath at room temperature (20 °C) if the rate constant were 1 x 104/sec?
16) The reaction (C2H5)2(NH2) + 12 (C2H5)2(N2) + 2HI gives the following data. Expt Initial(C2H5)2(NH2) mol L-1 Initial 12 mol L-1 Initial rate of formation of (C2H5)2(N2) mol L-1min-1 1 0.015 0.015 3.15 x 10-1 2 0.015 0.045 9.45x 10-1 3 0.030 0.045 18.9 x 10-1 a) Determine the order of the reaction with respect to each reactant. Explain how you arrived at each answer. (Show your method) b) What is the overall order of the reaction? c) Write the rate law expression. d) Calculate the rate constant, k and provide the proper units. e) If (C2H5)2(N2) is formed at a rate of 9.45 M/s in experiment 3, what is the rate of appearance of HI? f) In experiment 3, assuming it goes to completion, if all of [(C2H5)2(NH2) ] is reacted, what would be the amount of 12 remaining?
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for the following reaction mechanism: 1) H2(g) 2NO(g) -> N2O(g)+H2O(g)2) N2O(g)+H2(g) -> N2(g) +H2O(g) A) For each compound, write whether it is a reactand, a product or a transitional compound.B) What is the overall reactionC) Assuming a stable state, find the concentration of the transitional compoundD) Write an expression for H2 decrease rate in relation to reactantsD) Write an expression for N2 Increase rate in relation to reactantsE) What is the rate determining step? provide an explanation.
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