"The equilibrium constant of a chemical reaction is the value of its reaction quotient at chemical equilibrium, a state approached by a dynamic chemical system after sufficient time has elapsed at which its composition has no measurable tendency towards further change."
Mathematical expressions that describe the equilibrium concentrations/pressures of reactants and products in terms of the equilibrium constant and initial concentrations/pressures.
Chemical Equilibrium: Concept of Chemical Equilibrium: Static and Dynamic Equilibrium, Equilibrium Constant(Kc) and its Types.
Equilibrium Constant Expressions: Definition and Significance of Equilibrium Constant Expression, Equilibrium Constant Expression for Gases and Liquids.
Equilibrium Calculations: Conversion of Concentration Units, Determining Equilibrium Concentrations, Equilibrium Composition of a Mixture.
Le Chatelier's Principle: Definition and Explanation of Le Chatelier's Principle, Thermodynamic Constraints, Effect of Changes in Pressure, Temperature, and Concentration on Equilibrium.
Reaction Quotient: Definition of Reaction Quotient, Relationship between Q and K, Predicting Direction of Reaction.
Equilibrium Shift: Disturbance of an Equilibrium System, Predicting Reaction Shifts, Calculating New Equilibrium Constant.
Ionic Equilibria: Acid-Base Equilibria in Aqueous Solutions, Ionization of Weak Acids and Bases, pH Calculation, Hydrolysis of Salts, Buffer Solutions.
Equilibrium and Thermodynamics: Relationship between Entropy, Gibbs Free Energy and Equilibrium, Applications of Thermodynamics to Chemical Equilibria.
Solubility Equilibria: Definition of Solubility Product Constant, Calculating Solubility and Ion Concentrations, Predicting Precipitation and Dissolution.
Complex Equilibria: Formation of Complexes, Stepwise Formation Constants, Calculating Concentrations of Complexes.
Heterogeneous Equilibria: Equilibria involving Solid and Gaseous Phases, Equilibria of Adsorption and Surface Reactions.
Catalysis and Equilibrium: Effect of Catalysts on Equilibrium, Homogeneous and Heterogeneous Catalysis.
Kinetics and Equilibrium: Relationship between Equilibrium and Kinetics, Reaction Rates and Equilibrium Constants.
Electrochemistry and Equilibrium: Electrochemical Cells, Nernst Equation, Relationship between Equilibrium Constant and Electrochemical Potentials.
Acid-Base Titrations: Definition and Types of Acid-Base Titrations, Equivalence Point and End Point, Titration Curves, Calculation of pH.
Redox Reactions: Balancing Redox Reactions, Predicting Equilibrium Constants, Applications of Redox Equilibria.
Biochemical Equilibria: Applications of Equilibrium Concepts to Biological Systems, Biochemical Pathways and Enzyme Kinetics, Metabolic Regulation.
Industrial Equilibria: Equilibria in Industrial Processes, Haber Process, Contact Process, Le Chatelier's Principle in Industrial Processes.
Environmental Equilibria: Equilibrium Reactions in the Environment, Acid Rain, Greenhouse Effect, Ozone Depletion.
Quantum Mechanics and Equilibrium: Introduction to Quantum Mechanics, Schrödinger Equation and Equilibrium, Molecular Orbital Theory and Equilibrium.
Law of Mass Action Expression: It is a mathematical equation that relates the concentrations of reactants and products at equilibrium. It is written as Kc or Kp.
Van't Hoff Equation: It relates the equilibrium constant with the temperature. It is written as lnK = -ΔH/R(1/T) + ΔS/R.
Henry's Law Expression: It is used to calculate the concentration of gas dissolved in a liquid. It is written as K=hP, where K is the equilibrium constant, h is Henry's law constant, and P is the partial pressure of the gas.
Solubility Product Expression: It is used to calculate the concentration of ions in a saturated solution. It is written as Ksp=[A+]n[B-]m, where A+ and B- are the cation and anion, n and m are their coefficients, respectively.
Ionization Constant: It expresses the strength of an acid or base, and it is written as Ka or Kb.
Acid and Base Dissociation Constant: It expresses the degree to which an acid or base dissociates in a solution. It is written as Ka or Kb.
Formation Constant: It expresses the stability of a complex formed between a metal ion and a ligand. It is written as Kf.
Stability Constant: It expresses the stability of a compound in a solution. It is written as Ks.
Redox Equilibrium Constant: It expresses the equilibrium between oxidized and reduced forms of a substance. It is written as Kc or Kp.
Solvent Extraction Equilibrium: It expresses the equilibrium between a solute present in two immiscible solvents. It is written as Kd.
"a state approached by a dynamic chemical system after sufficient time has elapsed at which its composition has no measurable tendency towards further change."
"For a given set of reaction conditions, the equilibrium constant is independent of the initial analytical concentrations of the reactant and product species in the mixture."
"Thus, given the initial composition of a system, known equilibrium constant values can be used to determine the composition of the system at equilibrium."
"reaction parameters like temperature, solvent, and ionic strength may all influence the value of the equilibrium constant."
"A knowledge of equilibrium constants is essential for the understanding of many chemical systems."
"biochemical processes such as oxygen transport by hemoglobin in blood and acid–base homeostasis in the human body."
"Stability constants, formation constants, binding constants, association constants and dissociation constants are all types of equilibrium constants."
"temperature... may all influence the value of the equilibrium constant."
"solvent... may all influence the value of the equilibrium constant."
"acid–base homeostasis in the human body."
"oxygen transport by hemoglobin in blood."
"its composition has no measurable tendency towards further change."
"For a given set of reaction conditions, the equilibrium constant is independent of the initial analytical concentrations of the reactant and product species in the mixture."
"Stability constants, formation constants, binding constants, association constants and dissociation constants are all types of equilibrium constants."
"determine the composition of the system at equilibrium."
"The equilibrium constant is independent of the initial analytical concentrations of the reactant and product species in the mixture."
"a state approached by a dynamic chemical system after sufficient time has elapsed"
"The equilibrium constant is independent of the initial analytical concentrations of the reactant and product species in the mixture."
"Stability constants, formation constants, binding constants, association constants, and dissociation constants are all types of equilibrium constants."