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1. The figure depicts the steps that contribute to the enthalpy change for the dissolution of NaCl. A. Two of the figures do NOT contribute to the dissolution process. Which ones are they? How do you know they are incorrect depictions? B. Write a sentence that describes each of the 4 other processes in terms of the dissolution process. For example, process 1 depicts the separation of the solute particles. C. For the processes that contribute to dissolution, which ones are exothermic and which ones are endothermic? D. If the overall process of dissolution for NaCl is endothermic, draw an energy level diagram that depicts the four processes and their overall relationship to AH soln 1 2 3 Na+ ↑ & 5 6

1. The figure depicts the steps that contribute to the enthalpy change for the dissolution of NaCl. A. Two of the figures do NOT contribute to the dissolution process. Which ones are they? How do you know they are incorrect depictions? B. Write a sentence that describes each of the 4 other processes in terms of the dissolution process. For example, process 1 depicts the separation of the solute particles. C. For the processes that contribute to dissolution, which ones are exothermic and which ones are endothermic? D. If the overall process of dissolution for NaCl is endothermic, draw an energy level diagram that depicts the four processes and their overall relationship to AH soln 1 2 3 Na+ ↑ & 5 6

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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1. The figure depicts the steps that contribute to the enthalpy change for the dissolution of NaCl. A. Two of the figures do NOT contribute to the dissolution process. Which ones are they? How do you know they are incorrect depictions? B. Write a sentence that describes each of the 4 other processes in terms of the dissolution process. For example, process 1 depicts the separation of the solute particles. C. For the processes that contribute to dissolution, which ones are exothermic and which ones are endothermic? D. If the overall process of dissolution for NaCl is endothermic, draw an energy level diagram that depicts the four processes and their overall relationship to ΔH_soln. **Diagrams Explanation:** 1. **Diagram 1:** Shows a cluster of particles representing solid NaCl, which dissociates into individual Na⁺ and Cl⁻ ions. 2. **Diagram 2:** Displays water molecules approaching and interacting with the solute particles, indicating solvation. 3. **Diagram 3:** Depicts water molecules surrounding individual ions with distinct orientations, showing hydration. 4. **Diagram 4:** Represents an incorrect process of water molecules spreading apart without solute interaction, not contributing to dissolution. 5. **Diagram 5:** Shows connected water molecules that appear to form new ionic bonds, an incorrect depiction as it does not represent actual dissolution behavior. 6. **Diagram 6:** Illustrates a reversed process, with individual ions returning to a solid form, which does not contribute to dissolution.
Transcribed Image Text:1. The figure depicts the steps that contribute to the enthalpy change for the dissolution of NaCl. A. Two of the figures do NOT contribute to the dissolution process. Which ones are they? How do you know they are incorrect depictions? B. Write a sentence that describes each of the 4 other processes in terms of the dissolution process. For example, process 1 depicts the separation of the solute particles. C. For the processes that contribute to dissolution, which ones are exothermic and which ones are endothermic? D. If the overall process of dissolution for NaCl is endothermic, draw an energy level diagram that depicts the four processes and their overall relationship to ΔH_soln. **Diagrams Explanation:** 1. **Diagram 1:** Shows a cluster of particles representing solid NaCl, which dissociates into individual Na⁺ and Cl⁻ ions. 2. **Diagram 2:** Displays water molecules approaching and interacting with the solute particles, indicating solvation. 3. **Diagram 3:** Depicts water molecules surrounding individual ions with distinct orientations, showing hydration. 4. **Diagram 4:** Represents an incorrect process of water molecules spreading apart without solute interaction, not contributing to dissolution. 5. **Diagram 5:** Shows connected water molecules that appear to form new ionic bonds, an incorrect depiction as it does not represent actual dissolution behavior. 6. **Diagram 6:** Illustrates a reversed process, with individual ions returning to a solid form, which does not contribute to dissolution.
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