Consider the following equilibrium: N₂(g) + 3H₂(g)2NH3(g) AG = -34. KJ Now suppose a reaction vessel is filled with 3.40 atm of hydrogen (H₂) and 9.24 atm of ammonia system: Under these conditions, will the pressure of NH3 tend to rise or fall? Is it possible to reverse this tendency by adding N₂? In other words, if you said the pressure of NH3 will tend to rise, can that be changed to a tendency to fall by adding N₂? Similarly, if you said the pressure of NH3 will tend to fall, can that be changed to a tendency to rise by adding N₂? If you said the tendency can be reversed in the second question, calculate the minimum pressure of N₂ needed to reverse it. Round your answer to 2 significant digits. rise fall yes Ono X (NH3) at 736. °C. Answer the following questions about this S

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### Chemical Equilibrium Problem

**Consider the following equilibrium reaction:**
\[N_2(g) + 3H_2(g) \rightleftharpoons 2NH_3(g) \quad \Delta G^0 = -34 \text{ kJ}\]

**Scenario:**
A reaction vessel is filled with 3.40 atm of hydrogen (H₂) and 9.24 atm of ammonia (NH₃) at 736°C. Answer the following questions about this system:

### Questions

1. **Under these conditions, will the pressure of NH₃ tend to rise or fall?**
   - ☐ rise
   - ☐ fall

2. **Is it possible to reverse this tendency by adding N₂?**
    - In other words, if you said the pressure of NH₃ will tend to rise, can that be changed to a tendency to fall by adding N₂? Similarly, if you said the pressure of NH₃ will tend to fall, can that be changed to a tendency to rise by adding N₂?
    - ☐ yes
    - ☐ no

3. **If you said the tendency can be reversed in the second question, calculate the minimum pressure of N₂ needed to reverse it.**
    - Answer: ☐ atm (Please round your answer to 2 significant digits)

#### Detailed Explanation (Placeholder for Educators)

- Encourage students to consider Le Chatelier's Principle, which predicts how the equilibrium position shifts in response to changes in concentration, pressure, or temperature.
- Discuss how ΔG° (Gibbs free energy change) affects the spontaneity and direction of the reaction.
- Provide steps for calculating partial pressures and using the equilibrium constant expression for determining the new equilibrium state.

**Note:** The inclusion of visual aids (e.g., graphs, molecular models) may help students better understand the concepts. 

![Toggle Diagram](explanation_diagram_placeholder.png)

This interactive educational tool helps students visualize the impact of different variables on the chemical equilibrium.
Transcribed Image Text:### Chemical Equilibrium Problem **Consider the following equilibrium reaction:** \[N_2(g) + 3H_2(g) \rightleftharpoons 2NH_3(g) \quad \Delta G^0 = -34 \text{ kJ}\] **Scenario:** A reaction vessel is filled with 3.40 atm of hydrogen (H₂) and 9.24 atm of ammonia (NH₃) at 736°C. Answer the following questions about this system: ### Questions 1. **Under these conditions, will the pressure of NH₃ tend to rise or fall?** - ☐ rise - ☐ fall 2. **Is it possible to reverse this tendency by adding N₂?** - In other words, if you said the pressure of NH₃ will tend to rise, can that be changed to a tendency to fall by adding N₂? Similarly, if you said the pressure of NH₃ will tend to fall, can that be changed to a tendency to rise by adding N₂? - ☐ yes - ☐ no 3. **If you said the tendency can be reversed in the second question, calculate the minimum pressure of N₂ needed to reverse it.** - Answer: ☐ atm (Please round your answer to 2 significant digits) #### Detailed Explanation (Placeholder for Educators) - Encourage students to consider Le Chatelier's Principle, which predicts how the equilibrium position shifts in response to changes in concentration, pressure, or temperature. - Discuss how ΔG° (Gibbs free energy change) affects the spontaneity and direction of the reaction. - Provide steps for calculating partial pressures and using the equilibrium constant expression for determining the new equilibrium state. **Note:** The inclusion of visual aids (e.g., graphs, molecular models) may help students better understand the concepts. ![Toggle Diagram](explanation_diagram_placeholder.png) This interactive educational tool helps students visualize the impact of different variables on the chemical equilibrium.
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