NEET Chemistry Chemical Kinetics Questions Solved


Define the following:

(i) Order of a reaction

(ii) Activation energy of a reaction


(i)Order of a reaction:

   1. It is the sum of powers of molar concentrations of reacting species in the rate equation of the reaction.

   2. It may be a whole number, zero, fractional, positive or negative.

   3. It is experimentally determined.

   4. It is meant for the reaction and not for its individual steps.

(ii) Activation energy of a reaction: The minimum extra amount of energy absorbed by the reactant molecules to form the activated complex is called activation energy. 

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