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When the reaction A B+ C is studied, a plot of InfA], vs. time gives a straight line with a negative slope. What is the order of the reaction? A. zero 5. B. first C. second D. third E. More information is needed to determine the overall order. The rate law for the reaction 3A 2B is Rate k[A] with a rate constant of 0.0447 (1/sec). What is the half-life of the reaction? A. 0.0224 seconds B. 0.0645 seconds %3D 6. C. 44.7 seconds D. 22.4 seconds E. 15.5 seconds The decomposition of H2O2 is a first-order reaction with a rate constant of 1.06 x 10³ (1/sec). How long will it take for the concentration of H2O2 to drop from 0.0200 M to 0.0120 M? A. <1 sec 7. B. 7.55 sec C. 481 sec D. 4550 sec E. 31,400 sec 8. Cyclopropane is converted to propene in a first-order reaction. The rate constant is 5.4 x 10² s'. If the initial concentration of cyclopropane is 0.150 M, what will its concentration be after 22.0 seconds? A. 0.0457 M Jaiol AMI 00.6 B. 0.105 M C. 0.127 M D. 0.492 M 001.0 E. none of these choices is correct 9. The kinetics of the decomposition of dinitrogen pentaoxide is studied at 50°C and at 75°C. Which of the following statements concerning the studies is correct? The rate at 75°C will be greater than the rate at 50°C because the activation energy will be lower at 75°C than at 50°C. B. The rate at 75°C will be greater than the rate at 50°C because the activation energy will be higher at 75°C than at 50°C. C. The rate at 75°C will be less than the rate at 50°C because the molecules at higher speeds do not interact as well as those at lower speeds. D. The rate at 75°C will be greater than at 50°C because the concentration of a gas increases with increasing temperature. E. The rate at 75°C will be greater than the rate at 50°C because the number of molecules with enough energy to react increases with increasing temperature. HATHEN 10. A catalyst ace A. it removes em B. it lowers the a C. it increases the D. it increases th E. it supplies ene 11. The mechanism i

When the reaction A B+ C is studied, a plot of InfA], vs. time gives a straight line with a negative slope. What is the order of the reaction? A. zero 5. B. first C. second D. third E. More information is needed to determine the overall order. The rate law for the reaction 3A 2B is Rate k[A] with a rate constant of 0.0447 (1/sec). What is the half-life of the reaction? A. 0.0224 seconds B. 0.0645 seconds %3D 6. C. 44.7 seconds D. 22.4 seconds E. 15.5 seconds The decomposition of H2O2 is a first-order reaction with a rate constant of 1.06 x 10³ (1/sec). How long will it take for the concentration of H2O2 to drop from 0.0200 M to 0.0120 M? A. <1 sec 7. B. 7.55 sec C. 481 sec D. 4550 sec E. 31,400 sec 8. Cyclopropane is converted to propene in a first-order reaction. The rate constant is 5.4 x 10² s'. If the initial concentration of cyclopropane is 0.150 M, what will its concentration be after 22.0 seconds? A. 0.0457 M Jaiol AMI 00.6 B. 0.105 M C. 0.127 M D. 0.492 M 001.0 E. none of these choices is correct 9. The kinetics of the decomposition of dinitrogen pentaoxide is studied at 50°C and at 75°C. Which of the following statements concerning the studies is correct? The rate at 75°C will be greater than the rate at 50°C because the activation energy will be lower at 75°C than at 50°C. B. The rate at 75°C will be greater than the rate at 50°C because the activation energy will be higher at 75°C than at 50°C. C. The rate at 75°C will be less than the rate at 50°C because the molecules at higher speeds do not interact as well as those at lower speeds. D. The rate at 75°C will be greater than at 50°C because the concentration of a gas increases with increasing temperature. E. The rate at 75°C will be greater than the rate at 50°C because the number of molecules with enough energy to react increases with increasing temperature. HATHEN 10. A catalyst ace A. it removes em B. it lowers the a C. it increases the D. it increases th E. it supplies ene 11. The mechanism i

Chemistry: An Atoms First Approach
Chemistry: An Atoms First Approach
2nd Edition
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Steven S. Zumdahl, Susan A. Zumdahl
Chapter11: Chemical Kinetics
Section: Chapter Questions
Problem 5ALQ: Consider the following statements: In general, the rate of a chemical reaction increases a bit at...
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When the reaction A B+ C is studied, a plot of InfA], vs. time gives a straight line with a negative slope. What is the order of the reaction? A. zero 5. B. first C. second D. third E. More information is needed to determine the overall order. The rate law for the reaction 3A 2B is Rate k[A] with a rate constant of 0.0447 (1/sec). What is the half-life of the reaction? A. 0.0224 seconds B. 0.0645 seconds %3D 6. C. 44.7 seconds D. 22.4 seconds E. 15.5 seconds The decomposition of H2O2 is a first-order reaction with a rate constant of 1.06 x 10³ (1/sec). How long will it take for the concentration of H2O2 to drop from 0.0200 M to 0.0120 M? A. <1 sec 7. B. 7.55 sec C. 481 sec D. 4550 sec E. 31,400 sec 8. Cyclopropane is converted to propene in a first-order reaction. The rate constant is 5.4 x 10² s'. If the initial concentration of cyclopropane is 0.150 M, what will its concentration be after 22.0 seconds? A. 0.0457 M Jaiol AMI 00.6 B. 0.105 M C. 0.127 M D. 0.492 M 001.0 E. none of these choices is correct 9. The kinetics of the decomposition of dinitrogen pentaoxide is studied at 50°C and at 75°C. Which of the following statements concerning the studies is correct? The rate at 75°C will be greater than the rate at 50°C because the activation energy will be lower at 75°C than at 50°C. B. The rate at 75°C will be greater than the rate at 50°C because the activation energy will be higher at 75°C than at 50°C. C. The rate at 75°C will be less than the rate at 50°C because the molecules at higher speeds do not interact as well as those at lower speeds. D. The rate at 75°C will be greater than at 50°C because the concentration of a gas increases with increasing temperature. E. The rate at 75°C will be greater than the rate at 50°C because the number of molecules with enough energy to react increases with increasing temperature. HATHEN 10. A catalyst ace A. it removes em B. it lowers the a C. it increases the D. it increases th E. it supplies ene 11. The mechanism i
Transcribed Image Text:When the reaction A B+ C is studied, a plot of InfA], vs. time gives a straight line with a negative slope. What is the order of the reaction? A. zero 5. B. first C. second D. third E. More information is needed to determine the overall order. The rate law for the reaction 3A 2B is Rate k[A] with a rate constant of 0.0447 (1/sec). What is the half-life of the reaction? A. 0.0224 seconds B. 0.0645 seconds %3D 6. C. 44.7 seconds D. 22.4 seconds E. 15.5 seconds The decomposition of H2O2 is a first-order reaction with a rate constant of 1.06 x 10³ (1/sec). How long will it take for the concentration of H2O2 to drop from 0.0200 M to 0.0120 M? A. <1 sec 7. B. 7.55 sec C. 481 sec D. 4550 sec E. 31,400 sec 8. Cyclopropane is converted to propene in a first-order reaction. The rate constant is 5.4 x 10² s'. If the initial concentration of cyclopropane is 0.150 M, what will its concentration be after 22.0 seconds? A. 0.0457 M Jaiol AMI 00.6 B. 0.105 M C. 0.127 M D. 0.492 M 001.0 E. none of these choices is correct 9. The kinetics of the decomposition of dinitrogen pentaoxide is studied at 50°C and at 75°C. Which of the following statements concerning the studies is correct? The rate at 75°C will be greater than the rate at 50°C because the activation energy will be lower at 75°C than at 50°C. B. The rate at 75°C will be greater than the rate at 50°C because the activation energy will be higher at 75°C than at 50°C. C. The rate at 75°C will be less than the rate at 50°C because the molecules at higher speeds do not interact as well as those at lower speeds. D. The rate at 75°C will be greater than at 50°C because the concentration of a gas increases with increasing temperature. E. The rate at 75°C will be greater than the rate at 50°C because the number of molecules with enough energy to react increases with increasing temperature. HATHEN 10. A catalyst ace A. it removes em B. it lowers the a C. it increases the D. it increases th E. it supplies ene 11. The mechanism i
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