Chemical Equilibrium L-5 P-1 | JEE Advanced Kp–Kc Questions, Le Chatelier’s Principle,Eqm Shifts

Chemical Equilibrium Lecture 5 | JEE Advanced Kp–Kc Questions, Le Chatelier’s Principle (LCP), Equilibrium Shifts | ChembyKKSir

🌍 Namaste Dear Students!
Welcome to Chemical Equilibrium Lecture 5 — an advanced, exam-oriented class designed especially for JEE Advanced + NEET aspirants who want absolute command over equilibrium concepts.

In this session, I — Krishna Kumar Sah (ChembyKKSir) — have solved high-quality JEE Advanced questions based on Kp–Kc expressions and completed the most important conceptual topic of this chapter:
👉 Le Chatelier’s Principle (LCP) — the heart of Chemical Equilibrium.

This lecture perfectly connects numerical reasoning with conceptual understanding.

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⭐ Topics Discussed in Lecture 5

1. JEE Advanced-Level Questions on Kp & Kc

• Application of Kp & Kc in gaseous equilibria
• Expression derivations using:
– Total equilibrium pressure
– Volume of container
– Initial volume method
– Degree of dissociation (α)
• Multi-step numerical patterns asked in JEE Advanced
• Shortcut interpretation for conceptual MCQs

2. Complete Le Chatelier’s Principle (LCP)

• Understanding how a system responds to applied stress
• Prediction of reaction shifts using LCP
• Forward vs backward shift: when and why
• Relation of LCP with equilibrium composition (not with K)

3. Effect of Different Changes on Equilibrium Position

✔ Change in pressure
✔ Change in volume
✔ Change in concentration
✔ Addition of inert gas (constant P vs constant V)
✔ Addition of catalyst
✔ Change in temperature (qualitative + quantitative impact)

4. LCP + JEE Numericals Combined Approach

• How to judge the new equilibrium direction
• Predicting partial pressures, degree of dissociation, moles changes
• Error-free strategy for Advanced and Main level problems

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🎯 Best For

• JEE Advanced Aspirants
• JEE Main + NEET UG Students
• Class 11 & 12 Science Students
• MHT-CET | KCET | WBJEE | VITEEE
• Anyone wanting mastery in LCP + Kp–Kc expressions + equilibrium shifts

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👨‍🏫 Educator — ChembyKKSir

Krishna Kumar Sah
Senior Chemistry Professor | Medical Head – EURO JEE–NEET, PCMC Pune
15+ Years Experience | Mentored NEET AIR 75 & JEE Adv. AIR 48

✨ “Le Chatelier’s Principle is the language of equilibrium — master it, and every shift becomes predictable.”

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