Lesson Plan | Teachy Methodology | Equilibrium: Partial Pressures

Objectives

Duration: (10 - 15 minutes)

The purpose of this stage is to introduce students to the content that will be further explored during the class, focusing on the main skills that will be developed. The objectives are established to guide both the teacher and the students to stay focused on what is essential, ensuring that the understanding of the relationship between Kp and Kc is clear and effective.

Main Objectives

1. Understand and write the equilibrium constant (Kp) as a function of partial pressures.

2. Relate the equilibrium constant Kp to the equilibrium constant expressed in terms of molar concentrations (Kc).

Side Objectives

1. Identify the importance of partial pressures in the context of chemical reactions at equilibrium.
2. Apply the concepts of Kp and Kc in practical problems related to chemical equilibrium.

Introduction

Duration: (10 - 15 minutes)

The purpose of this stage is to introduce students to the content that will be further explored during the class, focusing on the main skills that will be developed. The objectives are established to guide both the teacher and the students to stay focused on what is essential, ensuring that the understanding of the relationship between Kp and Kc is clear and effective.

Warming Up

Introduce the topic of the lesson by explaining that chemical equilibrium is a crucial stage in many reactions and industrial applications, and that partial pressures are a vital way to describe this equilibrium. Ask students to use their cell phones to find an interesting fact about partial pressures or chemical equilibria in real-world applications, such as in the production of ammonia by the Haber-Bosch process or in biological systems.

Initial Reflections

1. What are partial pressures and how do they relate to chemical equilibrium?

2. What is the difference between the equilibrium constants Kp and Kc?

3. Why is it important to understand the relationship between Kp and Kc in real chemical processes?

4. How do variations in pressure and concentration affect chemical equilibrium?

5. What examples of real-world applications of the concept of partial pressures did you find in your research?

Development

Duration: 70-85 minutes

The purpose of this stage of the lesson plan is to provide students with a practical and interactive experience, using digital technologies and modern contexts to deepen their understanding of the concepts of partial pressures and equilibrium constants (Kp and Kc). Through the proposed activities, students will be able to apply their knowledge in real situations and develop skills in research, communication, and collaboration.

Activity Suggestions

It is recommended that only one of the suggested activities be carried out

Activity 1 - 🔍 Chemical Detectives on Social Media

> Duration: 60-70 minutes

- Objective: Engage students in investigating chemical reactions at equilibrium using the digital environment of social media to create interactive and informative reports, demonstrating the relationship between Kp and Kc.

- Description: Students will be 'Chemical Detectives' and use social media to investigate and gather information about different chemical reactions at equilibrium involving partial pressures. They will need to create a 'digital report' that presents the investigated reaction, the equilibrium constants (Kp and Kc), and how these quantities relate. The report can be made in the form of an Instagram post, a tweet thread on Twitter, or a short video on TikTok.

- Instructions:

• Divide the class into groups of up to 5 students.

• Each group will choose a chemical reaction at equilibrium to investigate.

• Use social media to search for relevant information about the chosen reaction, including industrial production, biological processes, etc.

• Create a 'digital report' that must contain: description of the reaction, identification of the involved partial pressures, calculation of the equilibrium constants (Kp and Kc), and the relationship between them.

• The report can be presented in the format of an Instagram post, a tweet thread on Twitter, or a short TikTok video, containing all the compiled information.

• Publish the report on the chosen social media and share the link with the class and the teacher.

Activity 2 - 🎮 Gamification: The Equilibrium Game

> Duration: 60-70 minutes

- Objective: Promote learning in a playful and interactive way, using gamification to review and deepen the concepts of partial pressures and equilibrium constants (Kp and Kc).

- Description: Students will participate in an online educational game where they will face different challenges related to the lesson's topic. Each challenge will involve solving problems about equilibrium constants (Kp and Kc), partial pressures, and how these quantities relate. The game will be developed on a platform like Kahoot or Socrative.

- Instructions:

• Divide the class into groups of up to 5 students.

• Explain how the chosen gamification platform (Kahoot or Socrative) works.

• Create or select an educational game that contains questions about partial pressures, equilibrium constants (Kp and Kc), and their relationship.

• Start the game and instruct students to answer the questions as a group.

• Each group should discuss among themselves before submitting their answers.

• At the end of the game, review the correct and incorrect answers with the class, clarifying doubts and reinforcing concepts.

Activity 3 - 🎥 Chemical Influencers: The Equilibrium Vlog

> Duration: 60-70 minutes

- Objective: Develop communication and presentation skills, using the vlog format to explain chemistry concepts related to chemical equilibrium and the equilibrium constants (Kp and Kc).

- Description: Students will become 'chemical influencers' and create an explanatory vlog about the concept of chemical equilibrium, partial pressures, and the equilibrium constants (Kp and Kc). They should use accessible language and visual resources to make the content interesting and informative.

- Instructions:

• Divide the class into groups of up to 5 students.

• Each group will choose a specific aspect of the lesson topic to address in the vlog, such as the definition of partial pressures, explanation of the equilibrium constants (Kp and Kc), or the relationship between Kp and Kc.

• Research visual resources, tables, graphics, and examples to enhance the presentation.

• Record a short video (5-10 minutes) explaining the chosen topic clearly and engagingly.

• Edit the video to include titles, subtitles, and visual resources.

• Publish the video on a platform like YouTube or share the link with the class and the teacher.

Feedback

Duration: 15-20 minutes

The purpose of this stage is to promote reflection on the learning acquired, encouraging the exchange of knowledge and experiences among students. Through the group discussion and 360° feedback, the goal is to reinforce the understanding of the concepts studied, identify areas for improvement, and value collaboration and communication among students, crucial elements for an engaging and effective learning environment.

Group Discussion

Facilitate a group discussion involving all students, starting with a brief introduction about the importance of sharing learnings and conclusions. Use the following outline to guide the discussion: 1. Introduction: Explain the objective of the discussion and encourage active participation from everyone. 2. Presentation of Digital Reports: Ask each group to briefly present the 'digital report' they created, mentioning the investigated chemical reaction, the equilibrium constants (Kp and Kc), and the relationship between them. 3. Experience and Reflections: Ask students about the challenges faced during the research and creation of the digital report and what the most interesting discoveries were. 4. Open Discussion: Open the floor for discussions, allowing students to ask questions and comment on their peers' presentations. 5. Conclusion: Summarize the main points discussed and remind everyone of the importance of the concepts covered.

Reflections

1. How did researching and creating the digital report help to better understand the relationship between Kp and Kc? 2. What were the main difficulties encountered during the activity and how were they overcome? 3. How did the practical examples found influence the understanding of theoretical concepts?

360° Feedback

Conduct a 360° feedback session where each student receives feedback from the other group members they worked with. Explain the importance of constructive and respectful feedback and give examples of how to provide this type of feedback. Guide students to comment on: 1. Positive Aspects: What did each member do well during the activity? 2. Areas for Improvement: What areas could be improved? 3. Collaboration and Communication: How was the interaction and contribution of each group member?

Conclusion

Duration: (10 - 15 minutes)

🎯 Purpose of the Conclusion 🎯: The conclusion aims to reinforce the main concepts learned during the lesson in a fun and engaging way, connecting them to the real world and their applications in daily life. It also serves to motivate students to see the practical importance of what was studied, consolidating learning and demonstrating the relevance of the knowledge acquired.

Summary

🌟 Super Fun Summary 🌟: Folks, today we dove into the fascinating world of chemical equilibrium! We unraveled the mysteries of partial pressures 🧪 and how to write them in the equilibrium constant Kp. Not only that, but we also explored how Kp relates to our old friend Kc 📊. It was a true scientific investigation with digital detectives and interactive games! 😎

World Connection

🌍 Connecting with the Current World 🌍: Chemistry is everywhere around us, from food production 🍔 to the pharmaceutical industry 💊. Understanding partial pressures and equilibrium constants is crucial for industrial processes like ammonia production in the Haber-Bosch process, essential for making fertilizers that feed the world! 🌱

Practical Application

🔔 Applications in Daily Life 🔔: Knowing about partial pressures and equilibrium constants helps us understand how to control important chemical reactions in our daily lives. For example, in the manufacture of chemicals, medicines, and even in the biological processes occurring in our bodies. It is knowledge that enables progress in various areas of science and technology! 🚀