Chemistry chapters
  1. 01Alcohols, Phenols & Ethers
  2. 02Aldehydes & Ketones
  3. 03Amines
  4. 04Atomic Structure
  5. 05Biomolecules
  6. 06Carboxylic Acids & Derivatives
  7. 07Chemical Bonding & Molecular Structure
  8. 08Chemical Equilibrium
  9. 09Chemical Kinetics
  10. 10Coordination Compounds
  11. 11Electrochemistry
  12. 12General Organic Chemistry
  13. 13Haloalkanes & Haloarenes
  14. 14Hydrocarbons
  15. 15IUPAC Nomenclature
  16. 16Ionic Equilibrium
  17. 17Isomerism
  18. 18Metallurgy
  19. 19Periodic Table & Periodicity
  20. 20Polymers
  21. 21Practical / Purification of Organic Compounds
  22. 22Qualitative & Salt Analysis
  23. 23Redox Reactions
  24. 24Solid State
  25. 25Solutions
  26. 26Some Basic Concepts of Chemistry
  27. 27States of Matter
  28. 28Surface Chemistry
  29. 29Thermodynamics & Thermochemistry
  30. 30d & f Block Elements
  31. 31p-Block Elements
  32. 32s-Block Elements
  33. 33Environmental Chemistry & Everyday Life

Chapter 29 · Class 11-12 & JEE/NEET

Thermodynamics & Thermochemistry

76 topics in 17 parts

Full lessonClass 11 Chemistry · Thermodynamics (Chemistry) Practice3 practice questions

Key ideas

Zn Anode (-) 1M ZnSO₄ (aq) Zn → Zn²⁺ + 2e⁻ Cu Cathode (+) 1M CuSO₄ (aq) Cu²⁺ + 2e⁻ → Cu Salt Bridge (Agar-Agar + KCl) V e⁻ flow → E°_cell = E°_cathode - E°_anode = +1.10 V
Thermodynamics & Thermochemistry

Diagnostic Comparison & Property Matrix

Parameter / FeatureStandard State / Condition AAltered State / Condition B
Driving ForceThermodynamic control (more stable product)Kinetic control (lower activation barrier)
Solvent DependencyPolar protic solvent stabilizes charge separationPolar aprotic solvent accelerates bare nucleophilicity
Temperature InfluenceHigh temperatures favor elimination / endothermicMild temperatures favor addition / exothermic
Common PitfallOverlooking rearrangement or stereochemical inversionNeglecting boundary limits or stoichiometric coefficients

All 76 topics in Thermodynamics & Thermochemistry

  1. Fundamentals of Thermodynamics

    • System & Surroundings
    • Thermodynamic Properties
    • Types of Systems
    • Thermodynamic Processes
    • State Functions
    • Intensive & Extensive Properties
    • Zeroth Law & Thermal Equilibrium
  2. Heat, Work & Internal Energy

    • Heat
    • Work
    • Internal Energy
    • PV Work & Diagrams
    • Reversible & Irreversible Work
    • Non-Expansion Work
  3. First Law of Thermodynamics

    • Mathematical Formulation
    • Heat & Work Sign Conventions
    • Applications to Thermodynamic Processes
  4. Heat Capacity & Specific Heats

    • Heat Capacity at Constant Pressure
    • Heat Capacity at Constant Volume
    • Relation Between Cp & Cv
    • Temperature-Dependent Heat Capacity
  5. Ideal-Gas Expansion & Compression

    • Isothermal Expansion & Compression
    • Adiabatic Expansion & Compression
    • Isobaric & Isochoric Processes
    • Free Expansion
    • Irreversible Expansion Against Constant External Pressure
  6. Joule–Thomson Effect & Inversion Temperature

    • Joule–Thomson Coefficient
    • Inversion Temperature
  7. Enthalpy & Calorimetry

    • Enthalpy
    • Relationship Between ΔU & ΔH
    • ΔH Measurement
    • ΔU Measurement
    • Bomb Calorimetry
    • Coffee-Cup Calorimetry
    • Calorimetric Corrections
  8. Thermochemistry

    • Thermochemical Equations
    • Exothermic & Endothermic Reactions
    • Enthalpy of Reaction
  9. Laws of Thermochemistry

    • Hess’s Law of Constant Heat Summation
    • Lavoisier–Laplace Law
    • Kirchhoff’s Law
  10. Enthalpies of Reactions

    • Enthalpy of Formation
    • Enthalpy of Combustion
    • Enthalpy of Neutralization
    • Enthalpy of Atomization
    • Enthalpy of Solution
    • Enthalpy of Hydration
    • Enthalpy of Phase Transformation
    • Resonance Energy
  11. Bond Enthalpy & Lattice Enthalpy

    • Bond Enthalpy & Bond Dissociation Enthalpy
    • Average Bond Enthalpy
    • Lattice Enthalpy
    • Born–Haber Cycle
  12. Spontaneity & Second Law

    • Enthalpy Criterion for Spontaneity
    • Entropy Criterion for Spontaneity
    • Second Law Statements
  13. Entropy

    • Calculation of Entropy Change
    • Chemical Changes
    • Physical Changes
    • Factors Affecting Entropy
    • Universe Entropy Change
  14. Gibbs Energy & Equilibrium

    • Gibbs Energy & Spontaneity
    • Calculation of ΔG
    • ΔG° & Equilibrium Constant
    • Gibbs–Helmholtz Equation
    • Van’t Hoff Reaction Isotherm
    • Chemical Potential
    • Maximum Non-Expansion Work
  15. Carnot Cycle & Heat Engines

    • Cyclic Processes
    • Carnot Cycle
    • Heat-Engine Efficiency
  16. Phase Equilibria

    • Phase Transformations
    • Clapeyron Equation
    • Clausius–Clapeyron Equation
  17. Third Law of Thermodynamics

    • Absolute Entropy
    • Unattainability of Absolute Zero
    • T–S Curves