Using the appropriate bond energies, calculate the heat of reaction AH for the following reaction! H-H+CI-CI-2H-CI You can find a table of bond energies by using the Data button on the ALEKS toolbar. Round your answer to the nearest kJ/mol. Note: For clarity, all lone pairs have been omitted from the molecular structures. kJ mol X
Thermochemistry
Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.
Exergonic Reaction
The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.
![**Title: Calculating the Heat of Reaction Using Bond Energies**
**Objective:**
Learn how to calculate the heat of reaction (ΔH) using the appropriate bond energies for a given chemical reaction.
**Reaction:**
\[ \text{H–H} + \text{Cl–Cl} \rightarrow 2 \text{H–Cl} \]
**Instructions:**
1. **Use Bond Energies:**
- Access the table of bond energies using the "Data" button on the ALEKS toolbar.
2. **Calculate ΔH:**
- Use the bond energies to calculate the heat of reaction ΔH for the given chemical equation.
- Ensure your answer is rounded to the nearest kJ/mol.
3. **Note:**
- All lone pairs have been excluded from the molecular structures for clarity.
**Answer Box:**
- Enter your calculated value in kJ/mol in the provided space.
\[ \text{kJ/mol} \]
\[ \square \]
**Tools:**
- Buttons for "Explanation" and "Check" are available for assistance and verification of your answer.
**Graph/Diagram Explanation:**
There are no specific graphs or diagrams included. The reaction and required calculations are presented textually.
**Source:**
- © 2022 McGraw Hill
This easy-to-follow guide will help students accurately determine the heat of reaction based on bond energy calculations.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fad08dc2d-a8b1-4577-bbd3-fa0bc9778c94%2Febfa806b-16f9-40be-ad7f-fbf50eaf6faa%2F0hso54_processed.jpeg&w=3840&q=75)
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