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22. The decomposition of hydrogen peroxide is a first-order process with a rate constant of 1.06 × 10° min How long will it take for the concentration of H2O2 to drop from 0.0200 M to 0.0120 M? <1 min 7.55 min 481 min 4550 min 31,400 min A. В. С. D. E. 23. Cyclopropane is converted to propene in a first-order process. The rate constant is 5.4 x 102 hr'. If the initial concentration of cyclopropane is 0.150 M, what will its concentration be after 22.0 hours? A. 0.0457 M В. 0.105 M 0127 M

22. The decomposition of hydrogen peroxide is a first-order process with a rate constant of 1.06 × 10° min How long will it take for the concentration of H2O2 to drop from 0.0200 M to 0.0120 M? <1 min 7.55 min 481 min 4550 min 31,400 min A. В. С. D. E. 23. Cyclopropane is converted to propene in a first-order process. The rate constant is 5.4 x 102 hr'. If the initial concentration of cyclopropane is 0.150 M, what will its concentration be after 22.0 hours? A. 0.0457 M В. 0.105 M 0127 M

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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22. The decomposition of hydrogen peroxide is a first-order process with a rate constant of 1.06 × 10³ min"'. How long will it take for the concentration of H2O2 to drop from 0.0200 M to 0.0120 M? A. <1 min В. 7.55 min С. 481 min D. 4550 min E. 31,400 min 23. Cyclopropane is converted to propene in a first-order process. The rate constant is 5.4 x 102 hr'. If the initial concentration of cyclopropane is 0.150 M, what will its concentration be after 22.0 hours? A. 0.0457 M В. С. 0.105 M 0.127 M D. 0.492 M Е. none of these choices is correct 24. The rate law for the reaction 3A → 2B is rate = k[A] with a rate constant of 0.0447 hr"'. What is the half- life of the reaction? A. 0.0224 hr В. 0.0645 hr С. 15.5 hr D. 22.4 hr E. 44.7 hr 25. The rate law for the rearrangement of CH3NC to CH3;CN at 800 K is rate =(1300 s')[CH3NC]. What is the half-life for this reaction? 7.69 x 104 s 5.3 x 104 s 1.9 x 103 s 520 s А. В. С. D.
Transcribed Image Text:22. The decomposition of hydrogen peroxide is a first-order process with a rate constant of 1.06 × 10³ min"'. How long will it take for the concentration of H2O2 to drop from 0.0200 M to 0.0120 M? A. <1 min В. 7.55 min С. 481 min D. 4550 min E. 31,400 min 23. Cyclopropane is converted to propene in a first-order process. The rate constant is 5.4 x 102 hr'. If the initial concentration of cyclopropane is 0.150 M, what will its concentration be after 22.0 hours? A. 0.0457 M В. С. 0.105 M 0.127 M D. 0.492 M Е. none of these choices is correct 24. The rate law for the reaction 3A → 2B is rate = k[A] with a rate constant of 0.0447 hr"'. What is the half- life of the reaction? A. 0.0224 hr В. 0.0645 hr С. 15.5 hr D. 22.4 hr E. 44.7 hr 25. The rate law for the rearrangement of CH3NC to CH3;CN at 800 K is rate =(1300 s')[CH3NC]. What is the half-life for this reaction? 7.69 x 104 s 5.3 x 104 s 1.9 x 103 s 520 s А. В. С. D.
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