Topic: Temperature Dependence of the Rate of a Reaction
Chemical Kinetics
Class 12th Chemistry
Chapter: Chemical Kinetics
Topic: Effect of Catalyst
Chemical Kinetics
Class 12th Chemistry
Chapter: Chemical Kinetics
Topic: Collision Theory
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Chemical kinetics is the study of the rates of chemical reactions and the factors that affect them. It is an important branch of chemistry as it helps in understanding the behavior of chemical reactions and enables the prediction of the outcome of a reaction under different conditions.
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It is usually expressed in terms of moles per liter per second (mol/L/s). The rate of a chemical reaction can be affected by various factors such as temperature, concentration, surface area, and the presence of catalysts.
Reaction Mechanisms:
A reaction mechanism is a series of steps that describe the pathway by which a reaction occurs. It involves the breaking and formation of chemical bonds and can be depicted using chemical equations. Reaction mechanisms help in understanding the sequence of steps involved in a reaction and enable the prediction of the rate and outcome of a reaction under different conditions.
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Rate Law:
The rate law is an expression that relates the rate of a chemical reaction to the concentrations of reactants. It is expressed in the form of a mathematical equation and includes a rate constant, which is specific to each reaction. The rate law can be determined experimentally by measuring the change in concentration of reactants over time.
Activation Energy:
Activation energy is the minimum amount of energy required for a chemical reaction to occur. It is the energy required to break the bonds in the reactants and initiate the reaction. The activation energy can be lowered by the presence of a catalyst, which provides an alternate pathway for the reaction to occur.