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Syllabus

Chemical Equilibrium — Syllabus

Telangana Open School (TOSS) · Class 12 · Chemistry

What Chemical Equilibrium covers in Telangana Open School (TOSS) Class 12 Chemistry: 4 topics, for the 2026-27 session.

49 questions28 flashcards4 concepts

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4 Topics · Telangana Open School (TOSS) Class 12 Chemistry · 2026-27

Topics in Chemical Equilibrium

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1. Static and Dynamic Equilibrium

  • Static equilibrium occurs when no movement or reaction takes place, e.g., a book lying on a table.
  • Dynamic equilibrium occurs when forward and reverse processes happen at equal rates, resulting in no net change, e.g., liquid-vapour equilibrium.
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2. Reversible and Irreversible Reactions

  • Reversible reactions proceed in both directions and are denoted by ⇌.
  • Irreversible reactions go to completion and are denoted by →.
  • Most reactions are theoretically reversible, but some proceed almost entirely in one direction.
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3. Characteristics of Equilibrium State

  • Equilibrium is dynamic — reactions continue at equal rates.
  • It can be reached from either direction (reactants or products).
  • Only possible in a closed system to prevent escape of substances.
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4. Physical and Chemical Equilibria

  • Physical equilibria include phase changes like solid-liquid, liquid-vapour, and solubility.
  • Chemical equilibria involve reversible chemical reactions.
  • Homogeneous equilibrium: all components in the same phase.

Key Concepts

Central concept: Chemical Equilibrium

Static and Dynamic EquilibriumReversible and Irreversible ReactionsCharacteristics of Equilibrium StatePhysical EquilibriumChemical EquilibriumLaw of Equilibrium and Equilibrium ConstantsMagnitude of Equilibrium ConstantFactors Affecting Equilibrium

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Frequently Asked Questions

What are the important topics in Chemical Equilibrium for Telangana Open School (TOSS) Class 12 Chemistry?
Key topics in Chemical Equilibrium include Static and Dynamic Equilibrium, Reversible and Irreversible Reactions, Characteristics of Equilibrium State, Physical and Chemical Equilibria. Study these first, then practise questions on each for the Telangana Open School (TOSS) Class 12 board exam.
How should I revise Chemical Equilibrium for the Telangana Open School (TOSS) Class 12 board exam?
Learn the core ideas first, then work through the 49 practice questions on Chemical Equilibrium. 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.

More resources for Chemical Equilibrium

All Telangana Open School (TOSS) Class 12 Chemistry Syllabus

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