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Chemical Kinetics

Rate of a reaction (Average and instantaneous), factors affecting rate of reaction: concentration, temperature, catalyst; order and molecularity of a reaction, rate law and specific rate constant, integrated rate equations and half life (only for zero and first order reactions), concept of collision theory (elementary idea, no mathematical treatment). Activation energy, Arrhenious equation.

chemistry 12th class cbse notes

Collision Theory of Chemical Reactions

According to this theory, the reactant molecules are assumed to be hard spheres and reaction is postulated to occur when molecules collide with each...
chemistry 12th class cbse notes

Effect of Catalyst on Rate of Reaction

Effect of Catalyst on Rate of Reaction A catalyst is a substance which alters the rate of a reaction without itself undergoing any permanent chemical...
chemistry 12th class cbse notes

Arrhenius equation

Arrhenius equation Quantitively, the temperature dependence of the rate of a chemical reaction can be explained by Arrhenius equation where A is the Arrhenius factor or...
chemistry 12th class cbse notes

Temperature Dependency of a Rate of Reaction

Temperature Dependency of a Rate of Reaction Activation Energy According to collision theory, a reaction takes place because the reactant molecules collide with each other. The minimum...
chemistry 12th class cbse notes

Half-Life of a Reaction

Half-Life of a Reaction The half-life of a reaction is the time in which the concentration of a reactant is reduced to one half of...
chemistry 12th class cbse notes

Integrated Rate Equations

Integrated Rate Equations The integrated rate equations are different for the reactions of different reaction orders. We shall determine these equations only for zero and...
chemistry 12th class cbse notes

Molecularity of a Reaction

Molecularity of a Reaction The number of reacting species (atoms, ions or molecules) taking part in an elementary reaction, which must collide simultaneously in order...
chemistry 12th class cbse notes

Rate Expression and Rate Constant

Rate expression and rate constant Consider a general reaction aA + bB → cC + dD Where, a, b, c, and d are the stoichiometric coefficient of...
chemistry 12th class cbse notes

Chemical kinetics & Rate of Reaction

What is Chemical kinetics? Chemical kinetics is the branch of chemistry which deals with the study of rates (or fastness) of chemical reactions, the factors...