(i) Zero order Reaction:

Mathematical expression for first order reaction :

Rate of reaction is independent of concentration. Where c ≠ O

Unit of Rate Constant: mol. litre-1 time-1

Examples:

(ii) First Order Reaction:

Mathematical  expression for first order reaction :

(iii) Pseudo First Order Reaction:

When the order of reaction seems like 2 but one component in large excess then     it behaves like first order, such type of reaction, are called as pseudo first order reaction.

Examples:


when water is taken an solvent i.e. in excess.

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Class 12 Chemistry Chemical Kinetics All Topics Notes CBSE Class 12 Chemistry All Chapters Notes

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