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Which step is the lowest energy transition state?

Which step is the lowest energy transition state?

Chemistry
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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**Question 38: Consider the following energy diagram for an enzyme-catalyzed reaction.** **Diagram Explanation:** The diagram showcases an energy profile with an arrow labeled "Energy" pointing upwards, indicating increasing energy levels. The diagram features several horizontal lines marked with letters A through I. These lines represent different energy levels of various states in the reaction. Each letter corresponds to a specific point, indicating either a transition state or an intermediate step in the reaction. - **A** is at the lowest energy level. - **B** is at a higher energy level than A. - **C, E, and G** are lower than B but higher than A. - **D, F, and H** are higher than C, E, and G. - **I** is slightly above H and is an end-point. **Question:** Which step is the lowest energy transition state? a. B b. E c. F d. G **Answer Explanation:** To determine the lowest energy transition state, observe the positions of the letters on the energy diagram. A transition state corresponds to a peak in energy, the highest point between reactants and products. Here, the focus would be on the relative heights of B, E, F, and G to identify which represents a transition state occurring at the lowest energy level.
Transcribed Image Text:**Question 38: Consider the following energy diagram for an enzyme-catalyzed reaction.** **Diagram Explanation:** The diagram showcases an energy profile with an arrow labeled "Energy" pointing upwards, indicating increasing energy levels. The diagram features several horizontal lines marked with letters A through I. These lines represent different energy levels of various states in the reaction. Each letter corresponds to a specific point, indicating either a transition state or an intermediate step in the reaction. - **A** is at the lowest energy level. - **B** is at a higher energy level than A. - **C, E, and G** are lower than B but higher than A. - **D, F, and H** are higher than C, E, and G. - **I** is slightly above H and is an end-point. **Question:** Which step is the lowest energy transition state? a. B b. E c. F d. G **Answer Explanation:** To determine the lowest energy transition state, observe the positions of the letters on the energy diagram. A transition state corresponds to a peak in energy, the highest point between reactants and products. Here, the focus would be on the relative heights of B, E, F, and G to identify which represents a transition state occurring at the lowest energy level.
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