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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Transcribed Image Text:This image is a graph depicting the free energy changes during a chemical reaction. The x-axis represents the "Progress of the Reaction," while the y-axis denotes "Free Energy."
The reaction proceeds from the reactants (A + B) to the products (C + D), passing through a transition state.
- **Line a**: Represents the difference in free energy from the reactants to the top of the energy barrier (the transition state). This is the activation energy required for the forward reaction.
- **Line b**: Indicates the change in free energy from the reactants to the point just before the transition state.
- **Line c**: Shows the difference in energy between the transition state and the products.
- **Line d**: Represents the change in free energy from the transition state to the products, essentially the energy released.
- **Line e**: The overall change in free energy (ΔG) of the reaction from A + B to C + D. This line represents the energy difference between the reactants and the products, indicating the spontaneity of the reaction.
**Question**: Which of the following represents the ΔG of the reaction in the above figure?
The correct answer is **Line e**.
Expert Solution

Step 1
the G = G(C+D) - G(A+B)
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