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The particulate model below represents the redox reactions that produce energy from fuel cells. Use the model to answer the following questions. +

The particulate model below represents the redox reactions that produce energy from fuel cells. Use the model to answer the following questions. +

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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2.Write a balanced half-cell equation for the reaction occurring at the cathode. Ignore phases in the reaction.

3.Assuming excess oxygen, how many moles of electrons would be transferred if 5 moles of H2 were reacted. 

 

 

--- **Electrochemistry Practice Problem** **Problem Statement:** Write a balanced half-cell equation for the reaction occurring at the anode. Ignore phases in the reaction. **Equation Editor Options:** - \( X' \) - \( X_i \) - \( \text{He} \) - \( \rightarrow \) - \( \delta \) **Answer:** (Answer input area for students) *Note: The equations and symbols can be constructed using the equation editor provided above the answer area.* --- **Explanation:** For students learning electrochemistry, the goal here is to correctly identify and write the oxidation reaction that takes place at the anode. Note that oxidation entails the loss of electrons. This task involves balancing the atoms and charges in the half-cell reaction equation. Remember to make use of the given symbols and operators to accurately represent the reaction.
Transcribed Image Text:--- **Electrochemistry Practice Problem** **Problem Statement:** Write a balanced half-cell equation for the reaction occurring at the anode. Ignore phases in the reaction. **Equation Editor Options:** - \( X' \) - \( X_i \) - \( \text{He} \) - \( \rightarrow \) - \( \delta \) **Answer:** (Answer input area for students) *Note: The equations and symbols can be constructed using the equation editor provided above the answer area.* --- **Explanation:** For students learning electrochemistry, the goal here is to correctly identify and write the oxidation reaction that takes place at the anode. Note that oxidation entails the loss of electrons. This task involves balancing the atoms and charges in the half-cell reaction equation. Remember to make use of the given symbols and operators to accurately represent the reaction.
### Understanding Redox Reactions in Fuel Cells #### Particulate Model of Redox Reactions in Fuel Cells The particulate model illustrated below represents the redox (reduction-oxidation) reactions that take place in fuel cells to produce energy. Study the model carefully and use it to answer the questions that follow. ![Redox Reactions in Fuel Cells](image-url) #### Diagram Explanation: 1. **Hydrogen Molecule (H₂)** - **Representation:** Two small white spheres bonded together. - **Process:** The hydrogen molecule splits (oxidation), releasing electrons (e⁻) and protons (H⁺). 2. **Oxygen Molecule (O₂)** - **Representation:** Two large red spheres bonded together. - **Process:** The oxygen molecule combines with the protons (H⁺) and electrons to form water (H₂O). 3. **Electrons (e⁻)** - **Representation:** Small blue spheres with a minus sign. - **Process:** These electrons are generated from the oxidation of hydrogen and are directed towards the oxygen. 4. **Protons (H⁺)** - **Representation:** Small white spheres with a plus sign. 5. **Water Molecule (H₂O)** - **Representation:** One red sphere (oxygen) bonded with two white spheres (hydrogen). - **Formation:** Produced by the reaction of oxygen with the hydrogen atoms (protons and electrons). The overall chemical reaction in the fuel cell can be represented by: \[ 2H_2 + O_2 \rightarrow 2H_2O \] This process demonstrates how chemical energy from hydrogen and oxygen is converted into water, releasing energy that can be harnessed for electrical power in a fuel cell. #### Summary: This model visualizes the key components and interactions involved in the redox reactions within a fuel cell, highlighting the conversion of hydrogen and oxygen into water as a means of generating energy. Understanding this model is crucial for grasping the fundamentals of how fuel cells operate.
Transcribed Image Text:### Understanding Redox Reactions in Fuel Cells #### Particulate Model of Redox Reactions in Fuel Cells The particulate model illustrated below represents the redox (reduction-oxidation) reactions that take place in fuel cells to produce energy. Study the model carefully and use it to answer the questions that follow. ![Redox Reactions in Fuel Cells](image-url) #### Diagram Explanation: 1. **Hydrogen Molecule (H₂)** - **Representation:** Two small white spheres bonded together. - **Process:** The hydrogen molecule splits (oxidation), releasing electrons (e⁻) and protons (H⁺). 2. **Oxygen Molecule (O₂)** - **Representation:** Two large red spheres bonded together. - **Process:** The oxygen molecule combines with the protons (H⁺) and electrons to form water (H₂O). 3. **Electrons (e⁻)** - **Representation:** Small blue spheres with a minus sign. - **Process:** These electrons are generated from the oxidation of hydrogen and are directed towards the oxygen. 4. **Protons (H⁺)** - **Representation:** Small white spheres with a plus sign. 5. **Water Molecule (H₂O)** - **Representation:** One red sphere (oxygen) bonded with two white spheres (hydrogen). - **Formation:** Produced by the reaction of oxygen with the hydrogen atoms (protons and electrons). The overall chemical reaction in the fuel cell can be represented by: \[ 2H_2 + O_2 \rightarrow 2H_2O \] This process demonstrates how chemical energy from hydrogen and oxygen is converted into water, releasing energy that can be harnessed for electrical power in a fuel cell. #### Summary: This model visualizes the key components and interactions involved in the redox reactions within a fuel cell, highlighting the conversion of hydrogen and oxygen into water as a means of generating energy. Understanding this model is crucial for grasping the fundamentals of how fuel cells operate.
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