In this video from The Molecular Mind with A.S., we’ll learn how to calculate enthalpy change step by step using bond energies and understand the formation of liquid water through real exam-style examples. 💧 We’ll cover: ✅ Enthalpy change for the reaction H₂(g) + I₂(g) → 2HI(g) ✅ Step-by-step bond energy method explained clearly ✅ Enthalpy change for formation of one mole of liquid water ✅ Tips to remember for Class 9 & 10 Chemistry 📘 Perfect for: Students of Class 9, 10, and O-Level Chemistry 💥 Watch till the end for quick tricks to solve enthalpy questions in seconds! 📈 Hashtags / SEO: #TheMolecularMindWithAS #EnthalpyChange #BondEnergy #Energetics #ChemistryClass9 #HeatOfReaction #FormationOfWater #Thermochemistry #Endothermic #Exothermic #ChemistryMadeEasy #LearnWithAS Welcome to The Molecular Mind with A.S. 🌟 In this chemistry video, you’ll learn how to calculate enthalpy change in simple, easy-to-understand steps using bond energies and formation reactions. We’ll solve two key problems from your Chemistry syllabus: 1️⃣ Sample Problem: Enthalpy change for the reaction 👉 H₂(g) + I₂(g) → 2HI(g) using given bond energies (H–H = 436 kJ/mol, I–I = 151 kJ/mol, H–I = –299 kJ/mol). 2️⃣ Exercise Question: Enthalpy change for the formation of one mole of liquid water (H₂Oₗ) from hydrogen and oxygen. You’ll learn: 💡 What is enthalpy change (ΔH) 💡 How to calculate energy absorbed and released 💡 Difference between endothermic and exothermic reactions 💡 The easiest trick to solve bond energy numericals for exams This lesson is perfect for Class 9, Class 10, and O-Level Chemistry students who want to master energetics and thermochemistry. 👉 Don’t forget to like, subscribe, and share for more clear, conceptual chemistry lessons from The Molecular Mind with A.S. enthalpy change class 9 chemistry, bond energy calculation, enthalpy change example, formation of water enthalpy, how to calculate enthalpy change, exothermic and endothermic reactions, energetics class 9, chemistry chapter 5 energetics, heat of reaction, bond enthalpy examples, thermochemistry tutorial, the molecular mind with AS, class 10 chemistry numericals, energy in chemical reactions, chemistry for beginners. #TheMolecularMindWithAS #EnthalpyChange #BondEnergy #Energetics #Thermochemistry #FormationOfWater #Exothermic #Endothermic #ChemistryClass9 #ChemistryClass10 #ScienceWithAS #HeatOfReaction #LearnChemistry #ChemistryMadeEasy #MolecularMind