Скачать или смотреть 📘Thermodynamics | Entropy (এনট্রপি) | Class 11(L5) | JEE | NEET by AR Classes | তাপগতিবিদ্যা | রসায়ন

Thermodynamics | Entropy (এনট্রপি) | Class 11(L5) | JEE | NEET by AR Classes | তাপগতিবিদ্যা | রসায়ন
Welcome to Lecture 3 of Thermodynamics (Chemistry), designed especially for NEET 2026 and JEE 2026 aspirants.
In this lecture, we focus on Entropy (ΔS)—one of the most important and frequently asked concepts in Physical Chemistry—along with previous year questions (PYQs) from NEET & JEE.

This session will help you clearly understand disorder, spontaneity, and entropy change calculations, ensuring strong performance in exams.

📌 Topics Covered in Lecture 3

✔ Meaning & physical significance of Entropy (ΔS)
✔ Entropy change for:
• Isothermal processes
• Phase transitions
• Reversible & irreversible processes
✔ Entropy change of universe
✔ Relation between Entropy & Spontaneity
✔ Mathematical expression of entropy
✔ Units of entropy
✔ NEET & JEE PYQ problems (step-by-step solutions)
✔ Common mistakes & exam-oriented shortcuts

🎯 Who Should Watch This Lecture?

NEET 2026 Aspirants
JEE Main & Advanced 2026 Aspirants
Class 11 & 12 Physical Chemistry Students
Droppers & Repeaters
Students aiming for high accuracy in numericals

🔥 Why This Lecture Is Important

Entropy questions appear every year in NEET & JEE
Builds foundation for Gibbs Free Energy (ΔG)
Improves conceptual clarity + calculation speed
Fully NCERT-aligned & exam-focused

📌 Take Action Now

👍 Like the video
💬 Comment your doubts
🔔 Subscribe to AR Classes for complete NEET/JEE Chemistry
📚 Share with your study group

📢 Hashtags

#Thermodynamics #Entropy #PhysicalChemistry #NEET2026 #JEE2026
#NEETChemistry #JEEChemistry #EntropyChange #ChemistryLecture
#Class11Chemistry #Class12Chemistry #PYQChemistry #ARClasses #AbhijitRoy
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