Introduction to Thermodynamics
Thermodynamics connects heat, work and energy transfer in gases, engines and real physical systems.
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physics notes thermodynamics
Learn heat, work, internal energy, laws and thermodynamic processes.
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- NEET
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- JEE Advanced
Thermal Equilibrium Overview
Thermal equilibrium explains when two bodies stop exchanging heat and share the same temperature condition.
Zeroth Law Overview
The Zeroth Law gives the foundation of temperature measurement and comparison between systems.
First Law Overview
The First Law applies conservation of energy to heat supplied, internal energy change and work done.
Heat Engines Overview
Heat engines convert heat into work and introduce efficiency, reservoirs, cycles and practical limitations.
Second Law Overview
The Second Law explains direction of heat flow, engine limits, reversibility and entropy.
Complete Chapter Roadmap
Use these chapter cards as the main Thermodynamics hub for concepts, numericals, formulae and exam-focused PYQs.
7 Parts
Thermodynamic Systems and Thermal Equilibrium
Build the base of systems, surroundings, boundaries and equilibrium before using thermodynamic laws.
Thermodynamic SystemSurroundingsBoundaryOpen SystemClosed SystemIsolated SystemThermal EquilibriumZeroth LawNumericalsPYQsHeat Work and Internal Energy
Understand how heat and work transfer energy and how internal energy represents the state of a system.
HeatWorkInternal EnergySign ConventionMechanical Equivalent of HeatEnergy TransferNumericalsPYQsFirst Law of Thermodynamics
Apply energy conservation to thermodynamic systems using heat supplied, work done and internal energy.
First LawΔQ = ΔU + ΔWEnergy ConservationApplicationsCyclic ProcessNumericalsPYQsThermodynamic Processes
Compare isothermal, adiabatic, isobaric and isochoric processes with PV diagrams and work done.
Isothermal ProcessAdiabatic ProcessIsochoric ProcessIsobaric ProcessPV DiagramsWork Done in ProcessesProcess ComparisonNumericalsPYQsHeat Engines Refrigerators and Carnot Engine
Study engines, refrigerators, COP and Carnot limits through cycles and exam-ready applications.
Heat EngineEfficiencyRefrigeratorCoefficient of PerformanceCarnot EngineCarnot CycleCarnot EfficiencyApplicationsNumericalsPYQsSecond Law of Thermodynamics and Entropy
Learn direction of natural processes, reversibility and entropy for advanced thermodynamics questions.
Second LawKelvin Planck StatementClausius StatementReversible ProcessIrreversible ProcessEntropyEntropy ChangeApplicationsNumericalsPYQsThermodynamics Formula Sheet and PYQs
Revise formulae, NCERT practice and previous-year questions across CBSE, NEET, JEE and international boards.
Complete Formula SheetHeat FormulaeWork FormulaeInternal Energy FormulaeFirst Law FormulaeProcess FormulaeCarnot Engine FormulaeEntropy FormulaeNCERT ExamplesNCERT ExercisesCBSE PYQsNEET PYQsJEE Main PYQsJEE Advanced PYQsIB QuestionsIGCSE QuestionsA-Level QuestionsAssertion ReasonCase Study QuestionsQuick Revision NotesStill Confused in Thermodynamics?
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