Chemical Kinetics

Chemical kinetics explores the rates of chemical reactions and the factors that influence these rates.

Rate Of A Chemical Reaction

This section explores the rate at which chemical reactions occur and defines average and instantaneous rates.

Average Rate

This section discusses the average rate of chemical reactions, detailing its calculation and significance.

Instantaneous Rate

The instantaneous rate of a chemical reaction is defined as the slope of the concentration-time graph at a particular moment, reflecting how quickly reactants are converted to products.

Factors Affecting The Rate Of Reaction

This section outlines key factors that influence the speed of chemical reactions.

Rate Law And Rate Constant

The rate law expresses the relationship between the rate of a reaction and the concentrations of its reactants, described mathematically by the rate constant.

General Form

The general form of the rate law expresses the rate of a chemical reaction in terms of the concentrations of the reactants raised to their respective powers, highlighting the significance of the rate constant.

Order Of A Reaction

The order of a reaction is defined as the sum of the powers of the concentration terms in the rate law, indicating how the reaction rate depends on reactant concentrations.

Molecularity Of A Reaction

Molecularity refers to the number of reactant species involved in an elementary reaction step and is always a whole number.

Integrated Rate Equations

Integrated rate equations relate concentration and time, enabling calculations of half-life and concentrations at any time.

Half-Life Of A Reaction

Half-life is the time required for half of a reactant to be consumed in a chemical reaction, particularly relevant for first-order reactions.

Temperature Dependence Of Rate – Arrhenius Equation

The Arrhenius equation describes the temperature dependence of the rate constant in chemical reactions, showing that rate constants increase with temperature.

Collision Theory

Collision theory posits that reactants must collide effectively with sufficient energy and proper orientation to form products.

Mechanism Of Reaction

The mechanism of a reaction details the stepwise process through which reactants transform into products, with the slowest step being the rate-determining step.

Summary

Chemical kinetics studies the rates of reactions and factors influencing these rates.