9. What effect does a catalyst have on a reaction? A. It changes the AH of a reaction. B. It increases the kinetic energy of the reactants. C. It decreases the potential energy of the products. D. It provides a reaction mechanism with a lower activation energy. 10. What does an additional catalyst to a reaction provide? A. lower activation energy and lower reaction rate. B. lower activation energy and higher reaction rate. C. higher activation energy and lower reaction rate. D. higher activation energy and higher reaction rate. 11 Which of the follouin

9. What effect does a catalyst have on a reaction? A. It changes the AH of a reaction. B. It increases the kinetic energy of the reactants. C. It decreases the potential energy of the products. D. It provides a reaction mechanism with a lower activation energy. 10. What does an additional catalyst to a reaction provide? A. lower activation energy and lower reaction rate. B. lower activation energy and higher reaction rate. C. higher activation energy and lower reaction rate. D. higher activation energy and higher reaction rate. 11 Which of the follouin

Chemistry

9th Edition

ISBN:9781133611097

Author:Steven S. Zumdahl

Publisher:Steven S. Zumdahl

Chapter12: Chemical Kinetics

Section: Chapter Questions

Problem 76AE: One of the concerns about the use of Freons is that they will migrate to the upper atmosphere, where...

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Similar questions

Why awe elementary reactions involving three or more reactants very uncommon?
Define these terms: (a) unimolecular reaction (b) bimolecular reaction (c) elementary reaction (d) overall reaction
How is it possible for a catalyst to give products from a reaction mixture that are different from those obtained when no catalyst or a different catalyst is used? Give an example.
If a textbook defined a catalyst as "a substance that increases the rate of a reaction," would that definition be adequate?
use the kineticmolecular theory to explain why an increase in temperature increases reaction rate.
One of the concerns about the use of Freons is that they will migrate to the upper atmosphere, where chlorine atoms can be generated by the following reaction: CCl2F2(g)Freon-12hvCF2Cl(g)+Cl(g) Chlorine atoms can act as a catalyst for the destruction of ozone. The activation energy for the reaction Cl(g) + O3(g) ClO(g) + O2(g) Is 2.1 kJ/mol. Which is the more effective catalyst for the destruction of ozone, Cl or NO? (See Exercise 75.)
For the following two reactions H+Cl2HCl+Cl H+Br2HBr+Br the first reaction has a lower value of A than the second reaction. What can one say about the relative properties of the intermediates HCl2 and HBr2, just from the relative values of A?
The rate of a certain reaction doubles for every 10 C rise in temperature. (a) How much faster does the reaction proceed at 45 C than at 25 C? (b) How much faster does the reaction proceed at 95 C than at 25 C?