Thermodynamics Lecture 10 | Bomb Calorimeter, Internal Energy & Enthalpy | Class 11 NEET скачать в хорошем качестве

Thermodynamics Lecture 10 | Bomb Calorimeter, Internal Energy & Enthalpy | Class 11 NEET

Thermodynamics Lecture 10 | Bomb Calorimeter, Internal Energy & Enthalpy | Class 11 NEET | ChembyKKSir ⸻ #Thermodynamics #Thermochemistry #ThermodynamicsLecture10 #PhysicalChemistry #Class11Chemistry #NEETChemistry #NCERTChemistry #InternalEnergy #Enthalpy #HeatOfReaction #BombCalorimeter #ConstantVolumeProcess #Calorimetry #FirstLawOfThermodynamics #HeatAndWork #ReactionEnthalpy #ChemistryByKKSir #ChembyKKSir #NEET2025 ⸻ Namaste Dear Students 🙏 Welcome to Thermodynamics & Thermochemistry — Lecture 10, a highly conceptual, NCERT-aligned and exam-defining lecture, where I have started the calculation of change in internal energy for reactive systems using the Bomb Calorimeter and simultaneously introduced one of the most important concepts of thermodynamics — ENTHALPY. This lecture is a direct continuation of Lecture 9, where internal energy was explained using kinetic theory and ideal gas behavior. In Lecture 10, we move from theory to real experimental calculation, exactly as required for NCERT, NEET and JEE. In this lecture, I — Krishna Kumar Sah (ChembyKKSir) — have explained in detail how a Bomb Calorimeter is a constant volume calorimeter, and how any chemical reaction occurring inside it allows direct calculation of change in internal energy (ΔE). Key concepts discussed in this lecture include: • What is a Bomb (Bohm) Calorimeter • Why Bomb Calorimeter works at constant volume • Why no PV work is done inside a bomb calorimeter • Relation between heat released/absorbed by reaction and heat gained/lost by water • Why in Bomb Calorimeter: ΔE = q (at constant volume) • Practical and NCERT-based explanation of calorimetry • Real experimental logic used in thermochemistry questions • Visual understanding using Bomb Calorimeter diagram Along with internal energy, I have started and completed the basic concept of ENTHALPY. The lecture explains clearly: • What is enthalpy (H) • Why enthalpy is called total heat content of the system • Mathematical relation: H = E + PV • Difference between internal energy (E) and enthalpy (H) • Why enthalpy is more useful for reactions at constant pressure • Meaning of enthalpy change (ΔH) • What is enthalpy (heat) of reaction • Expressions of enthalpy change • Relation between ΔE and ΔH (conceptual introduction) This lecture is extremely important because: • Bomb Calorimeter questions are directly asked in NEET • Understanding ΔE experimentally removes confusion forever • Enthalpy is the backbone of Thermochemistry • Without this lecture, heat of reaction cannot be understood This lecture connects: • Thermodynamics • Thermochemistry • First Law of Thermodynamics • Internal Energy • Enthalpy • Calorimetry • NCERT-based experimental chemistry If you understand Bomb Calorimeter and Enthalpy properly, Thermochemistry becomes logical, numerical-friendly and scoring. ⸻ Instagram:   / chembykksir   WhatsApp Channel: https://whatsapp.com/channel/0029Vb6F... Facebook: https://www.facebook.com/share/1ACSwY... LinkedIn:   / krishna-kumar-sah-13708661   Telegram: https://t.me/chembykksir YouTube:    / @chembykksir   ⸻ Understand internal energy experimentally and enthalpy conceptually — and Thermodynamics will start making complete sense.