Electrochemistry | L-12 | Relation between Gibb's Free energy and Equilibrium Constant | #class12

Welcome to Varnwal Chemistry Education 🔬 In this lecture (Electrochemistry | L-12 | Relation between Gibb's Free energy and Equilibrium Constant | #class12 Electrochemistry | L-11 PDF Link https://drive.google.com/file/d/1m2Pw... 📚 Topics Covered: ✅ Nernst Equation Revision ✅ Calculation of Cell EMF ✅ Hydrogen Electrode Potential ✅ Effect of pH on Electrode Potential ✅ Numerical Problems for JEE & NEET ✅ Class 12 Board Exam Preparation This lecture is useful for: 🎯 Class 12 CBSE/JAC/Bihar Board/UP Board Students 🎯 JEE Main & Advanced Aspirants 🎯 NEET 2026 Aspirants 👨‍🏫 Faculty: D.K. Varnwal Sir 🏆 Titanium Batch 2026-27 If you find this lecture helpful, Like 👍 Share 📲 and Subscribe 🔔 for complete Electrochemistry. This lecture is part of the complete Electrochemistry Series for Class 12 Science students. 🔔 Don't forget to Like, Share and Subscribe for more Chemistry lectures. #Electrochemistry #NernstEquation #EquilibriumConstant #Class12Chemistry #JEE2026 #NEET2026 #ChemistryLecture #DKVarnwal #PhysicalChemistry #BoardExamPreparation This lecture is specially designed for students of: 🎯 JEE 🎯 NEET 🎯 CBSE 🎯 JAC Board 🎯 Bihar Board 🎯 UP Board 🎯 All State Boards of India 📌 Batch: Titanium Batch 2026-27 📌 Class: 12th Chemistry 💡 “Zero to Hero in Chemistry” Series helps students learn Chemistry in the easiest and smartest way. LEC-12 (49 MINUTES) 🎯 Topic: Electrochemical Cell and Gibbs Free Energy 👨‍🏫 By: D.K. Varnwal Sir ⏱ Total Lecture Duration: 49 Minutes 00:00 – 01:30 Introduction of Lecture • Welcome to Titanium Batch • Importance of Gibbs Free Energy in Electrochemistry 01:30 – 06:00 Gibbs Free Energy (ΔG) – Basic Concept • Definition of Gibbs Free Energy • Why it is called useful energy • Significance in chemical reactions 06:00 – 14:00 Derivation of ΔG = –nFEcell • Electrical work done by galvanic cell • Relation between charge and electrons • Faraday constant (F) • Complete derivation 14:00 – 18:00 Faraday Constant Calculation • Charge on one electron • Charge on one mole electrons • Numerical derivation of F = 96500 C mol⁻¹ 18:00 – 24:00 Standard Gibbs Energy & Cell Potential • ΔG = –nFEcell • ΔG° = –nFE°cell • Conditions for spontaneity • Sign convention 24:00 – 29:00 Intensive vs Extensive Properties • Ecell as Intensive Property • Gibbs Energy as Extensive Property • Effect of multiplying chemical equation 29:00 – 33:00 Illustration: Zn + Cu²⁺ → Zn²⁺ + Cu • Calculation of ΔG • Effect of doubling reaction 33:00 – 37:00 Question 1 (JEE/NEET Level) Standard Gibbs Energy of Daniell Cell ⏱ Average Time: 4 Minutes 37:00 – 41:00 Question 2 Calculation of ΔG° and Equilibrium Constant ⏱ Average Time: 4 Minutes 41:00 – 43:00 Question 3 Concept-Based MCQ ⏱ Average Time: 2 Minutes 43:00 – 47:00 Question 4 Equilibrium Constant from Cell Potential ⏱ Average Time: 4 Minutes 47:00 – 48:30 Question 5 Advanced Practice Question ⏱ Average Time: 1.5 Minutes 48:30 – 49:00 Summary & Homework • Key Formula Revision • Important JEE/NEET Takeaways ━━━━━━━━━━━━━━━━━━ YOUTUBE SEARCH KEYWORDS Electrochemical Cell and Gibbs Free Energy Delta G and EMF Relation ΔG = -nFE Derivation Electrochemistry Class 12 JEE Electrochemistry NEET Electrochemistry Gibbs Free Energy Numericals Electrochemical Cell Questions Equilibrium Constant and EMF Class 12 Chemistry Chapter 3 DK Varnwal Chemistry Titanium Batch 2026 ━━━━━━━━━━━━━━━━━━ TOTAL LECTURE TIME = 49 MINUTES TOTAL QUESTIONS DISCUSSED = 5 AVERAGE TIME PER QUESTION ≈ 3–4 MINUTES Nernst Equation, EMF of Cell, Electrochemistry Class 12, Hydrogen Electrode, Nernst Equation Numericals, Cell Potential Calculation, Electrochemistry JEE, Electrochemistry NEET, Class 12 Chemistry, Physical Chemistry, Electrochemical Cell, Standard Electrode Potential, Hydrogen Electrode Potential, pH and Electrode Potential, Chemistry by DK Varnwal, Titanium Batch 2026, JEE 2026 Chemistry, NEET 2026 Chemistry, Board Exam Chemistry, Constant from Nernst Equation Nernst Equation Class 12 Electrochemistry Lecture 10 Relation between K and Ecell Standard Electrode Potential Electrochemistry JEE Main Electrochemistry NEET Class 12 Chemistry Chapter 3 Nernst Equation Derivation Equilibrium Constant Electrochemistry Electrochemistry One Shot Physical Chemistry Class 12 D K Varnwal Chemistry 📢 Don’t forget to: 👍 Like 💬 Comment 🔔 Subscribe 📤 Share with friends #Electrochemistry #NernstEquation #EMFofCell #HydrogenElectrode #Class12Chemistry #JEE2026 #NEET2026 #ChemistryLecture #PhysicalChemistry #DKVarnwal #ElectrochemicalCell #boardexampreparationexampur #Electrochemistry #NernstEquation #EquilibriumConstant #Class12Chemistry #JEE2026 #NEET2026 #CBSEChemistry #PhysicalChemistry #ChemistryLecture #DKVarnwal #BoardExam2026 #JEEChemistry #NEETChemistry #ScienceStudents #chemistryclass12