A catalyst decreases the activation energy of a particular exothermic reaction by 33 kJ/mol, to 25 kJ/mol. Assuming that the mechanism has only one step, and that the products are 55 kJ lower in energy than the reactants, sketch approximate energy-level diagrams for the catalyzed and uncatalyzed reactions. What is the activation energy for the uncatalyzed reverse reaction? Answer:
A catalyst decreases the activation energy of a particular exothermic reaction by 33 kJ/mol, to 25 kJ/mol. Assuming that the mechanism has only one step, and that the products are 55 kJ lower in energy than the reactants, sketch approximate energy-level diagrams for the catalyzed and uncatalyzed reactions. What is the activation energy for the uncatalyzed reverse reaction? Answer:
Chemistry
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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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![1)A
A catalyst decreases the activation energy of a particular exothermic reaction by 33 kJ/mol, to 25 kJ/mol. Assuming that the
mechanism has only one step, and that the products are 55 kJ lower in energy than the reactants, sketch approximate energy-level
diagrams for the catalyzed and uncatalyzed reactions.
What is the activation energy for the uncatalyzed reverse reaction?
Answer:
2) F
For the reaction A+B+C, when the natural log of [A] is plotted versus the time in seconds a straight line is obtained whose slope is
-0.034 s¹. What is the concentration of A (in M) after 44.0 s if [A] = 0.20 M?
Answer:
3)
For the reaction D→ A+ C when 1/[D] is plotted versus the time in seconds, a straight line is obtained whose slope is 0.042 M's".
What is the concentration of D (in M) after 63.0 s if [D], 0.50 M? Hint given in feedback
Answer:](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6d177053-3df2-4a43-957e-bfed9cb86bdf%2F69047407-2014-492a-a9dc-38920a6ef9f1%2Ffumunt2_processed.jpeg&w=3840&q=75)
Transcribed Image Text:1)A
A catalyst decreases the activation energy of a particular exothermic reaction by 33 kJ/mol, to 25 kJ/mol. Assuming that the
mechanism has only one step, and that the products are 55 kJ lower in energy than the reactants, sketch approximate energy-level
diagrams for the catalyzed and uncatalyzed reactions.
What is the activation energy for the uncatalyzed reverse reaction?
Answer:
2) F
For the reaction A+B+C, when the natural log of [A] is plotted versus the time in seconds a straight line is obtained whose slope is
-0.034 s¹. What is the concentration of A (in M) after 44.0 s if [A] = 0.20 M?
Answer:
3)
For the reaction D→ A+ C when 1/[D] is plotted versus the time in seconds, a straight line is obtained whose slope is 0.042 M's".
What is the concentration of D (in M) after 63.0 s if [D], 0.50 M? Hint given in feedback
Answer:
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