On the energy diagram below, which arrows represent the activation energy?

Biology 2e
2nd Edition
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark
Chapter6: Metabolism
Section: Chapter Questions
Problem 1VCQ: Figure 6.8 Look at each of the processes shown, and decide if it is endergonic or exergonic. In each...
icon
Related questions
Question
### Analyzing Activation Energy in Chemical Reactions

**Question:**
On the energy diagram below, which arrows represent the activation energy?

**Diagram Description:**
The energy diagram plots the reaction coordinate (x-axis) against energy (y-axis), illustrating the energy changes during a chemical reaction. It starts with the reactants at a certain energy level, which then rise to a peak (representing the transition state) before descending to the energy level of the products. Three arrows are depicted in the diagram:

- Arrow 1: Extends from the reactants' energy level to the peak of the transition state.
- Arrow 2: Extends from the products' energy level to the peak of the transition state.
- Arrow 3: Extends from the products' energy level to the reactants' energy level.

**Options:**
A. Arrow 1 is the activation energy for both the forward and reverse reactions.
B. Arrow 1 is the activation energy for the forward reaction and arrow 2 is the activation energy for the reverse reaction.
C. Arrow 1 is the activation energy for the forward reaction and arrow 3 is the activation energy for the reverse reaction.
D. Arrow 3 is the activation for the forward reaction and arrow 2 is the activation energy for the reverse reaction.

**Answer:**
**B. Arrow 1 is the activation energy for the forward reaction and arrow 2 is the activation energy for the reverse reaction.**

### Explanation of Terms:

**Activation Energy:**
- The minimum amount of energy required to initiate a chemical reaction.
- For the **forward reaction**, it is the energy needed to go from reactants to the transition state (represented by Arrow 1).
- For the **reverse reaction**, it is the energy needed to go from products to the transition state (represented by Arrow 2).

Understanding these concepts is essential for mastering reaction kinetics and thermodynamics in chemistry.
Transcribed Image Text:### Analyzing Activation Energy in Chemical Reactions **Question:** On the energy diagram below, which arrows represent the activation energy? **Diagram Description:** The energy diagram plots the reaction coordinate (x-axis) against energy (y-axis), illustrating the energy changes during a chemical reaction. It starts with the reactants at a certain energy level, which then rise to a peak (representing the transition state) before descending to the energy level of the products. Three arrows are depicted in the diagram: - Arrow 1: Extends from the reactants' energy level to the peak of the transition state. - Arrow 2: Extends from the products' energy level to the peak of the transition state. - Arrow 3: Extends from the products' energy level to the reactants' energy level. **Options:** A. Arrow 1 is the activation energy for both the forward and reverse reactions. B. Arrow 1 is the activation energy for the forward reaction and arrow 2 is the activation energy for the reverse reaction. C. Arrow 1 is the activation energy for the forward reaction and arrow 3 is the activation energy for the reverse reaction. D. Arrow 3 is the activation for the forward reaction and arrow 2 is the activation energy for the reverse reaction. **Answer:** **B. Arrow 1 is the activation energy for the forward reaction and arrow 2 is the activation energy for the reverse reaction.** ### Explanation of Terms: **Activation Energy:** - The minimum amount of energy required to initiate a chemical reaction. - For the **forward reaction**, it is the energy needed to go from reactants to the transition state (represented by Arrow 1). - For the **reverse reaction**, it is the energy needed to go from products to the transition state (represented by Arrow 2). Understanding these concepts is essential for mastering reaction kinetics and thermodynamics in chemistry.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps

Blurred answer
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Biology 2e
Biology 2e
Biology
ISBN:
9781947172517
Author:
Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:
OpenStax