Equilibrium is NCERT, Grade 11 Chemistry Chapter 7. Chemical equilibria are important in numerous biological and environmental processes. Chapter 7, Equilibrium is a part of Unit 7. Unit 4 – Unit 7 have a total weightage of 21 marks in the final examination.
Through the in-depth learning of this chapter, students will learn the concepts of Equilibrium in Physical Processes, Solid-Liquid Equilibrium, Liquid-Vapour Equilibrium, Solid – Vapour Equilibrium, Equilibrium Involving Dissolution of Solid or Gases In Liquids, General Characteristics of Equilibria Involving Physical Processes, Equilibrium in Chemical Processes – Dynamic Equilibrium, Law of Chemical Equilibrium and Equilibrium Constant, Homogeneous Equilibria, Equilibrium Constant in Gaseous Systems, Heterogeneous Equilibria, Applications of Equilibrium Constants, Predicting the Extent of a Reaction, Predicting the direction of the Reaction, Calculating Equilibrium Concentrations, Relationship Between Equilibrium Constant K, Reaction Quotient Q and Gibbs Energy G, Factors affecting Equilibria, Effect of Concentration Change, Effect of Pressure Change, Effect of Inert Gas Addition, Effect of Temperature Change, Effect of a Catalyst, Ionic Equilibrium in Solution, Acids, Bases And Salts, Arrhenius Concept of Acids and Bases, The Brönsted-Lowry Acids and Bases, Lewis Acids and Bases, Ionization of Acids And Bases, The Ionization Constant of Water and its Ionic Product, The pH Scale, Ionization Constants Of Weak Acids, Ionization of Weak Bases, Relation Between Ka and Kb, Di- and Polybasic Acids and Di- and Polyacidic Bases, Factors Affecting Acid Strength, Common Ion Effect in the Ionization of Acids And Bases, Hydrolysis of Salts and the pH of their Solutions, Buffer Solutions, Designing Buffer Solution, Solubility Equilibria of Sparingly Soluble Salts, Solubility Product Constant and Common Ion Effect on Solubility of Ionic Salts.
NCERT Chemistry Grade 11 Chapter 7, Equilibrium will make the students identify dynamic nature of equilibrium involved in physical and chemical processes; state the law of equilibrium; explain characteristics of equilibria involved in physical and chemical processes; write expressions for equilibrium constants; establish a relationship between Kp and Kc ; explain various factors that affect the equilibrium state of a reaction; classify substances as acids or bases according to Arrhenius, Bronsted-Lowry and Lewis concepts; classify acids and bases as weak or strong in terms of their ionization constants; explain the dependence of degree of ionization on concentration of the electrolyte and that of the common ion; describe pH scale for representing hydrogen ion concentration; explain ionisation of water and its duel role as acid and base; describe ionic product (Kw ) and pKw for water; appreciate use of buffer solutions; calculate solubility product constant.
Get 100 percent accurate NCERT Solutions for Class 11 Chemistry Chapter 7 (Equilibrium) solved by expert Chemistry teachers. We provide solutions for questions given in Class 11 Chemistry text-book as per CBSE Board guidelines from the latest NCERT book for Class 11 Chemistry. The topics and sub-topics in Chapter 7 Equilibrium are given below.
EX 7.1 - EQUILIBRIUM IN PHYSICAL PROCESSES
EX 7.1.1 - Solid-Liquid Equilibrium
EX 7.1.2 - Liquid-Vapour Equilibrium
EX 7.1.3 - Solid – Vapour Equilibrium
EX 7.1.4 - Equilibrium Involving Dissolution of Solid or Gases in Liquids
EX 7.1.5 - General Characteristics of Equilibria Involving Physical Processes
EX 7.2 - EQUILIBRIUM IN CHEMICAL PROCESSES – DYNAMIC EQUILIBRIUM
EX 7.3 - LAW OF CHEMICAL EQUILIBRIUM AND EQUILIBRIUM CONSTANT
EX 7.4 - HOMOGENEOUS EQUILIBRIA
EX 7.4.1 - Equilibrium Constant in Gaseous Systems
EX 7.5 - HETEROGENEOUS EQUILIBRIA
EX 7.6 - APPLICATIONS OF EQUILIBRIUM CONSTANTS
EX 7.6.1 - Predicting the Extent of a Reaction
EX 7.6.2 - Predicting the Direction of the Reaction
EX 7.6.3 - Calculating Equilibrium Concentrations
EX 7.7 - RELATIONSHIP BETWEEN EQUILIBRIUM CONSTANT K, REACTION QUOTIENT Q AND GIBBS ENERGY G
EX 7.8 - FACTORS AFFECTING EQUILIBRIA
EX 7.8.1 - Effect of Concentration Change
EX 7.8.2 - Effect of Pressure Change
EX 7.8.3 - Effect of Inert Gas Addition
EX 7.8.4 - Effect of Temperature Change
EX 7.8.5 - Effect of a Catalyst
EX 7.9 - IONIC EQUILIBRIUM IN SOLUTION
EX 7.10 - ACIDS, BASES AND SALTS
EX 7.10.1 - Arrhenius Concept of Acids and Bases
EX 7.10.2 - The Brönsted-Lowry Acids and Bases
EX 7.10.3 - Lewis Acids and Bases
EX 7.11 - IONIZATION OF ACIDS AND BASES
EX 7.11.1 - The Ionization Constant of Water and its Ionic Product
EX 7.11.2 - The pH Scale
EX 7.11.3 - Ionization Constants of Weak Acids
EX 7.11.4 - Ionization of Weak Bases
EX 7.11.5 - Relation between Ka and Kb
EX 7.11.6 - Di- and Polybasic Acids and Di- and Polyacidic Bases
EX 7.11.7 - Factors Affecting Acid Strength
EX 7.11.8 - Common Ion Effect in the Ionization of Acids and Bases
EX 7.11.9 - Hydrolysis of Salts and the pH of their Solutions
EX 7.12 - BUFFER SOLUTIONS
EX 7.13 - SOLUBILITY EQUILIBRIA OF SPARINGLY SOLUBLE SALTS
EX 7.13.1 - Solubility Product Constant
EX 7.13.2 - Common Ion Effect on Solubility of Ionic Salts .
We cover all exercises in the chapter given below:-
Chapter 7 - 73 Questions with Solutions.
Other than given exercises, you should also practice all the solved examples given in the book to clear your concepts on Equilibrium. Download the free PDF of Chapter 7 Equilibrium and take the print out to keep it handy for your exam preparation.