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Syllabus

Thermodynamics — Syllabus

ICSE · Class 11 · Physics

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

44 questions36 flashcards10 formulas & key relations5 concepts

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A diagram illustrating two systems (A and B) in thermal contact, showing heat transfer until they reach thermal equilibrium where there is no net heat flow and both systems are at the same temperature
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4 Topics · ICSE Class 11 Physics · 2026-27

Topics in Thermodynamics

1

Basic Terms and Zeroth Law

  • A system has a fixed amount of matter enclosed within a surface and studied thermodynamically.
  • Surroundings are everything outside the system and may directly affect the system.
  • An isolated system cannot exchange matter or energy with any other body or system.
2

Heat, Work, and Mechanical Equivalent of Heat

  • Heat is energy transferred due to temperature difference.
  • Work is energy transferred without dependence on temperature difference.
  • Heat given by a system is taken as negative.
3

Work Done by a Gas and P-V Graph

  • If a gas expands, it does work on the surroundings.
  • If a gas is compressed, work is done on the gas.
  • The infinitesimal work done by a gas is dW = P dV.
4

Internal Energy and First Law of Thermodynamics

  • Internal energy is the sum of kinetic and potential energy of the molecules of a system.
  • Internal energy depends only on the state of the system, not on the path used to reach that state.
  • The difference Q − W is defined as the change in internal energy, ΔU.

Key Concepts

Central concept: Thermodynamics

Basic termsTemperature and thermal equilibriumHeat and workMechanical equivalent of heatWork done by a gasInternal energyFirst law of thermodynamicsApplications of first law

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Frequently Asked Questions

What are the important topics in Thermodynamics for ICSE Class 11 Physics?
Key topics in Thermodynamics include Basic Terms and Zeroth Law, Heat, Work, and Mechanical Equivalent of Heat, Work Done by a Gas and P-V Graph, Internal Energy and First Law of Thermodynamics. 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 44 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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