Chemistry paper 1- Chapter 7-Energy Changes-AQA-GCSE- Triple & combined science-Higher-Grade 9

🔥 Exothermic & Endothermic Reactions | Reaction Profiles | Energy Changes | Fuel Cells 🧪 In this Chemistry lesson, we cover the key concepts you need to understand energy changes in chemical reactions, with clear explanations and exam-focused examples. Whether you're preparing for GCSE Chemistry for AQA exam board, this video will help you understand the topic and tackle common exam questions with confidence. 📚 In this video, we cover: 🔥 Exothermic Reactions • What an exothermic reaction is • Energy transfers to the surroundings • Examples of exothermic reactions ❄️ Endothermic Reactions • What an endothermic reaction is • Energy transfers from the surroundings • Common examples and how to identify them 📈 Reaction Profile Diagrams • How to draw and label reaction profiles • Reactants and products • Activation energy (Ea) • Overall energy change (ΔH) • How to identify exothermic and endothermic reactions from a profile 🧮 Calculating Energy Changes • How to calculate energy changes from reaction profiles • Understanding energy level differences • Exam-style calculations and common mistakes ⚡ Fuel Cells • How fuel cells work • The role of hydrogen and oxygen • The products formed • Advantages and disadvantages of fuel cells • Key points to remember for exams 🎯 Perfect for: GCSE Chemistry revision • Exam preparation • Homework • Students studying across different exam boards 📌 Watch until the end for a complete overview of the topic and the key points you need to remember for your Chemistry exam! #Chemistry #GCSEChemistry #Exothermic #Endothermic #ReactionProfiles #EnergyChanges #FuelCells #ChemistryRevision #GCSERevision #ScienceRevision