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Thermodynamics — Syllabus

CBSE · Class 11 · Physics

What Thermodynamics covers in CBSE Class 11 Physics: 4 topics, for the 2026-27 session. Part of the CBSE Class 11 Physics syllabus.

120 questions70 flashcards10 formulas & key relations5 concepts

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4 Topics · CBSE Class 11 Physics · 2026-27

Topics in Thermodynamics

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1. Basic ideas of thermodynamics

  • Thermodynamics is a macroscopic science; it does not deal with the molecular constitution of matter.
  • A thermodynamic state is specified by five state variables: pressure, volume, temperature, internal energy, and entropy.
  • Pressure, volume, temperature, and mass are state variables for describing equilibrium states.
2

2. Thermal equilibrium and Zeroth Law

  • Equilibrium in thermodynamics means macroscopic variables do not change with time.
  • Two systems separated by an adiabatic wall do not exchange heat.
  • A diathermic wall is a conducting wall that allows heat flow.
3

3. Heat, work, and the First Law of Thermodynamics

  • A system can change its internal energy by heat transfer or by work done on it.
  • Heat flows because of a temperature difference between the system and the surroundings.
  • Work is energy transfer by mechanical means, such as moving a piston.
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4. State variables, equation of state, and thermodynamic processes

  • Equilibrium states are described by state variables.
  • For an ideal gas, the equation of state is PV = μRT.
  • At fixed temperature, the P-V curve is called an isotherm.

Key Concepts

Central concept: Thermodynamics

IntroductionThermal equilibriumZeroth law of thermodynamicsHeat, internal energy and workFirst law of thermodynamicsSpecific heat capacitySpecific heats of solids and gasesThermodynamic state variables

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Frequently Asked Questions

What are the important topics in Thermodynamics for CBSE Class 11 Physics?
Key topics in Thermodynamics include Basic ideas of thermodynamics, Thermal equilibrium and Zeroth Law, Heat, work, and the First Law of Thermodynamics, State variables, equation of state, and thermodynamic processes. Study these first, then practise questions on each for Class 11 exams.
How should I revise Thermodynamics for Class 11 exams?
Learn the core ideas first, then work through the 120 practice questions on Thermodynamics. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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All CBSE Class 11 Physics Syllabus

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