Internal Energy & Enthalpy Explained | Thermodynamics & Thermochemistry Lecture | JEE NEET CBSE

Описание: ⸻

In this lecture of Thermodynamics and Thermochemistry, Krishnakumar Sir (Chem by KK Sir) explains the remaining part of Internal Energy (ΔU) and introduces the most important concept of Enthalpy (ΔH) — the foundation of Thermochemistry.

You will learn the difference between Internal Energy and Enthalpy, and how heat change behaves under different thermodynamic conditions — isochoric, isobaric, adiabatic, and isothermal processes — for both reactive and non-reactive systems.

This lecture marks the beginning of Thermochemistry, focusing on Enthalpy of Reaction and Heat Change at Constant Pressure — the most frequently asked topic in JEE Main, JEE Advanced, and NEET exams.

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🔹 Topics Covered in This Lecture:

✅ Internal Energy (ΔU) — final detailed concept
✅ Enthalpy (ΔH) — definition, relation with ΔU
✅ Enthalpy change for non-reactive system
✅ Enthalpy change for reactive system
✅ Heat change at constant volume and constant pressure
✅ Isochoric, Isobaric, Isothermal, and Adiabatic processes (separately for reactive and non-reactive systems)
✅ Concept of Heat of Reaction (Start of Thermochemistry)
✅ Enthalpy as a state function
✅ Relationship between ΔH and ΔU (ΔH = ΔU + ΔnRT)

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🧭 Why You Should Watch This Lecture
• Builds your foundation for Thermochemistry and Chemical Thermodynamics
• Essential for JEE Main, JEE Advanced, NEET, and Class 11 Boards
• Includes conceptual clarity, derivations, and real exam questions
• Taught with board-style clarity by Krishnakumar Sir, a Chemistry expert with 15+ years of experience

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📚 Follow Chem by KK Sir for Complete Chemistry Preparation:
🔹 Telegram: https://t.me/chembykksir
🔹 Facebook: https://www.facebook.com/share/1F1cHN...
🔹 Instagram:   / chembykksir  
🔹 YouTube Channel: Chem by KK Sir – Krishnakumar Sah

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💬 Thumbnail Tagline Options
1. “ΔU & ΔH – The Heart of Thermodynamics 🔥”
2. “Enthalpy Made Easy | Start of Thermochemistry 💡”
3. “Heat Change in Every Process – One Complete Lecture 📘”
4. “Constant Pressure & Constant Volume Concepts Simplified ⚡”
5. “From Internal Energy to Enthalpy – Full Concept + Formula 💥”

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