Welcome to STEMBridge Learning
Welcome to STEMBridge Learning, your complete learning platform for Physics, Chemistry, and Mathematics from Class 9–12, Matric, FSc, and O Levels.
Our goal is to simplify complex scientific concepts through easy explanations, real-life examples, and exam-oriented discussions to help you master every topic confidently.
About This Lesson
This lesson focuses on Introduction to Energetics and Enthalpy of Reaction from Class 9th Chemistry (FBISE syllabus).
In this video lecture, we explore how energy changes occur during chemical reactions and why some reactions release energy while others absorb it.
🎥 Watch the complete lecture here:
👉 Class 9 Chemistry | Introduction to Energetics & Enthalpy of Reaction | STEMBridge
Lesson Details
- Subject: Chemistry
- Chapter: Chemical Energetics
- Topics Covered: Introduction to Energetics, Exothermic & Endothermic Reactions, Enthalpy of Reaction, Energy Changes in Chemical Reactions
- Level: Class 9th (FBISE / Matric / O-Level Equivalent)
- Platform: STEMBridge YouTube Channel
What You Will Learn
By watching this STEMBridge lecture, you will learn:
✅ What “Energetics” means in Chemistry
✅ The concept of enthalpy and how it represents energy change
✅ Difference between exothermic and endothermic reactions
✅ Everyday examples of energy changes in reactions
✅ How to interpret energy profile diagrams
✅ The importance of enthalpy in predicting reaction behavior
Why This Topic Matters
Energetics is one of the most important concepts in Chemistry because every reaction involves energy transfer. Understanding enthalpy helps students explain why reactions occur, how energy is conserved, and how chemical processes are controlled.
Exam Tips for Success
- Remember that enthalpy change (ΔH) tells whether heat is released or absorbed.
- Exothermic → Energy released → ΔH is negative.
- Endothermic → Energy absorbed → ΔH is positive.
- Always draw and label energy profile diagrams correctly.
- Use everyday examples like combustion, dissolving salts, or melting ice to visualize energy transfer.
Explore More Lessons
Continue learning Chemistry with more STEMBridge lectures.
🔗 STEMBridge Learning Blog
Stay Connected
🎓 STEMBridge Official YouTube Channel
Follow, Learn, and Excel with STEMBridge — where Science becomes simple, logical, and easy to master.
0 Comments
Share your thoughts or questions about STEM — Science, Technology, Engineering, and Mathematics. Keep it respectful and relevant as we learn and grow together.