### Educational Exercise Instructions on Thermodynamics - **Guideline:** Ensure to indicate a leading zero when necessary. - **Requirement:** Provide your numbers to the 1/10 column (no need to worry about significant figures). #### Examples: - **-1234.5** - **0.1** #### Questions: a) **What is the SUM term for the PRODUCTS?** - [Input box] b) **What is the SUM term for the REACTANTS?** - [Input box] c) **What is the ΔG°f for O₂?** - [Input box] kJ/mol d) **What is the ΔG°Rxn?** - [Input box] #### Important: - For your units in Parts e) - **Instruction:** Provide the units using SYMBOLS without spaces and with correct capitalization. - **Example:** g/mol e) **What are the UNITS for the ΔG°Rxn?** - [Input box] **Calculating Standard Free Energy Change (ΔG°rxn)** Using the provided table of standard free energies of formation, calculate ΔG°rxn for the following reaction and answer the questions below: | Species | ΔG°f (kJ/mol) | |------------|---------------| | C₈H₁₈ (l) | -357.6 | | CO₂ (g) | -394.4 | | H₂O (g) | -228.6 | Reaction: \[ 2 \, \text{C}_8\text{H}_{18(\ell)} + 25 \, \text{O}_{2(g)} \rightarrow 16 \, \text{CO}_{2(g)} + 18 \, \text{H}_{2\text{O(g)}} \] **Important:** For your numerical answers in Parts a) - d): - Include numbers only (no units). - No spaces or commas. - Include a leading zero when necessary. - Give your numbers to the 1/10 column (don't worry about significant figures). Examples: -1234.5 and 0.1 **Questions:** a) What is the SUM term for the PRODUCTS? b) What is the SUM term for the REACTANTS?
### Educational Exercise Instructions on Thermodynamics - **Guideline:** Ensure to indicate a leading zero when necessary. - **Requirement:** Provide your numbers to the 1/10 column (no need to worry about significant figures). #### Examples: - **-1234.5** - **0.1** #### Questions: a) **What is the SUM term for the PRODUCTS?** - [Input box] b) **What is the SUM term for the REACTANTS?** - [Input box] c) **What is the ΔG°f for O₂?** - [Input box] kJ/mol d) **What is the ΔG°Rxn?** - [Input box] #### Important: - For your units in Parts e) - **Instruction:** Provide the units using SYMBOLS without spaces and with correct capitalization. - **Example:** g/mol e) **What are the UNITS for the ΔG°Rxn?** - [Input box] **Calculating Standard Free Energy Change (ΔG°rxn)** Using the provided table of standard free energies of formation, calculate ΔG°rxn for the following reaction and answer the questions below: | Species | ΔG°f (kJ/mol) | |------------|---------------| | C₈H₁₈ (l) | -357.6 | | CO₂ (g) | -394.4 | | H₂O (g) | -228.6 | Reaction: \[ 2 \, \text{C}_8\text{H}_{18(\ell)} + 25 \, \text{O}_{2(g)} \rightarrow 16 \, \text{CO}_{2(g)} + 18 \, \text{H}_{2\text{O(g)}} \] **Important:** For your numerical answers in Parts a) - d): - Include numbers only (no units). - No spaces or commas. - Include a leading zero when necessary. - Give your numbers to the 1/10 column (don't worry about significant figures). Examples: -1234.5 and 0.1 **Questions:** a) What is the SUM term for the PRODUCTS? b) What is the SUM term for the REACTANTS?
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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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.
Question
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![### Educational Exercise Instructions on Thermodynamics
- **Guideline:** Ensure to indicate a leading zero when necessary.
- **Requirement:** Provide your numbers to the 1/10 column (no need to worry about significant figures).
#### Examples:
- **-1234.5**
- **0.1**
#### Questions:
a) **What is the SUM term for the PRODUCTS?**
- [Input box]
b) **What is the SUM term for the REACTANTS?**
- [Input box]
c) **What is the ΔG°f for O₂?**
- [Input box] kJ/mol
d) **What is the ΔG°Rxn?**
- [Input box]
#### Important:
- For your units in Parts e)
- **Instruction:** Provide the units using SYMBOLS without spaces and with correct capitalization.
- **Example:** g/mol
e) **What are the UNITS for the ΔG°Rxn?**
- [Input box]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F96529d31-1af4-4d90-b6c1-79b0ae971a1c%2F4b7410c0-1019-493d-924f-2ad2223c1f76%2Fa10kdjp_processed.png&w=3840&q=75)
Transcribed Image Text:### Educational Exercise Instructions on Thermodynamics
- **Guideline:** Ensure to indicate a leading zero when necessary.
- **Requirement:** Provide your numbers to the 1/10 column (no need to worry about significant figures).
#### Examples:
- **-1234.5**
- **0.1**
#### Questions:
a) **What is the SUM term for the PRODUCTS?**
- [Input box]
b) **What is the SUM term for the REACTANTS?**
- [Input box]
c) **What is the ΔG°f for O₂?**
- [Input box] kJ/mol
d) **What is the ΔG°Rxn?**
- [Input box]
#### Important:
- For your units in Parts e)
- **Instruction:** Provide the units using SYMBOLS without spaces and with correct capitalization.
- **Example:** g/mol
e) **What are the UNITS for the ΔG°Rxn?**
- [Input box]
![**Calculating Standard Free Energy Change (ΔG°rxn)**
Using the provided table of standard free energies of formation, calculate ΔG°rxn for the following reaction and answer the questions below:
| Species | ΔG°f (kJ/mol) |
|------------|---------------|
| C₈H₁₈ (l) | -357.6 |
| CO₂ (g) | -394.4 |
| H₂O (g) | -228.6 |
Reaction:
\[ 2 \, \text{C}_8\text{H}_{18(\ell)} + 25 \, \text{O}_{2(g)} \rightarrow 16 \, \text{CO}_{2(g)} + 18 \, \text{H}_{2\text{O(g)}} \]
**Important:**
For your numerical answers in Parts a) - d):
- Include numbers only (no units).
- No spaces or commas.
- Include a leading zero when necessary.
- Give your numbers to the 1/10 column (don't worry about significant figures).
Examples: -1234.5 and 0.1
**Questions:**
a) What is the SUM term for the PRODUCTS?
b) What is the SUM term for the REACTANTS?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F96529d31-1af4-4d90-b6c1-79b0ae971a1c%2F4b7410c0-1019-493d-924f-2ad2223c1f76%2Fb9mw07c_processed.png&w=3840&q=75)
Transcribed Image Text:**Calculating Standard Free Energy Change (ΔG°rxn)**
Using the provided table of standard free energies of formation, calculate ΔG°rxn for the following reaction and answer the questions below:
| Species | ΔG°f (kJ/mol) |
|------------|---------------|
| C₈H₁₈ (l) | -357.6 |
| CO₂ (g) | -394.4 |
| H₂O (g) | -228.6 |
Reaction:
\[ 2 \, \text{C}_8\text{H}_{18(\ell)} + 25 \, \text{O}_{2(g)} \rightarrow 16 \, \text{CO}_{2(g)} + 18 \, \text{H}_{2\text{O(g)}} \]
**Important:**
For your numerical answers in Parts a) - d):
- Include numbers only (no units).
- No spaces or commas.
- Include a leading zero when necessary.
- Give your numbers to the 1/10 column (don't worry about significant figures).
Examples: -1234.5 and 0.1
**Questions:**
a) What is the SUM term for the PRODUCTS?
b) What is the SUM term for the REACTANTS?
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