AllRounder.ai

Enrol to start learning

Reading is open to everyone. Enrolling is free, and it is what unlocks the audio lessons, practice tests and progress tracking.

Enrol free

7. Equilibrium

Equilibrium encompasses the concept of a balance between opposing processes in chemical or physical systems. It can be categorized into physical and chemical equilibrium, with each having distinct characteristics and examples. The study of equilibrium extends to factors affecting it, such as concentration, temperature, and pressure, providing insights into real-world phenomena and applications in various scientific fields.

Sections

Equilibrium

Equilibrium occurs when opposing processes in a system occur at the same rate, leading to a stable condition.

7 Section Overview

Start current section content and materials

7.1 Introduction to Equilibrium

Equilibrium is a state in which opposing processes occur at the same rate, resulting in no net change within chemical or physical systems.

7.2 Types of Equilibrium

This section describes the two main types of equilibrium in chemical and physical systems: physical equilibrium and chemical equilibrium.

7.2.1 Physical Equilibrium

Physical equilibrium describes the state during phase changes of matter where opposing processes occur at the same rate.

7.2.2 Chemical Equilibrium

Chemical equilibrium occurs when two opposing reactions happen at the same rate, resulting in stable concentrations of reactants and products.

7.3 Characteristics of Chemical Equilibrium

Chemical equilibrium is a dynamic state where the rate of the forward and reverse reactions are equal, resulting in constant concentrations of reactants and products.

7.4 Reversible and Irreversible Reactions

This section distinguishes between reversible and irreversible reactions in chemistry, illustrating how the former allows products to revert to reactants while the latter proceeds in one direction only.

7.4.1 Reversible Reactions

Reversible reactions are chemical processes where products can convert back into reactants, indicated by a double arrow (⇌).

7.4.2 Irreversible Reactions

Irreversible reactions only proceed in one direction, transforming reactants into products without reversing.

7.5 Factors Affecting Equilibrium (Le Chatelier’s Principle)

Le Chatelier’s Principle states that when a system at equilibrium is disturbed, it adjusts to minimize that disturbance.

7.6 Examples of Equilibrium in Everyday Life

This section provides everyday examples of equilibrium in both chemical and physical systems.

7.7 Importance of Equilibrium

The importance of equilibrium lies in its crucial role in chemical processes and biological systems.

Learning Objectives

  • Equilibrium is a state where opposing processes occur at the same rate.

  • There are two main types of equilibrium: physical and chemical.

  • Le Chatelier's Principle describes how a system at equilibrium responds to disturbances.

Key Concepts

Equilibrium

A state in a chemical or physical system where opposing processes occur at the same rate.

Dynamic Equilibrium

A state of balance where reactions continue to occur, resulting in constant concentrations.

Le Chatelier’s Principle

A principle that states when a system at equilibrium is disturbed, it will adjust to minimize the disturbance.

Reversible Reactions

Reactions in which products can revert to reactants, indicated by a double arrow (⇌).

Irreversible Reactions

Reactions that proceed only in one direction, indicated by a single arrow (→).

Practice Exercises

Total Questions

2

Estimated Time

4 min

Passing Score

70%

Instructions

  • Read each question carefully
  • You can use hints if you need help
  • Complete all questions before submitting