Question

Define the order and molecularity of a reaction

Answer 1

Order of a reaction s the sum of power to which the concentration of reactants which combine in the reaction.

Molecularity is the total no of reactants that combine in a single step of reaction.

Answer 2

• The sum of all the powers of concentration included in the rate law gives the value of order of reaction.

It may be zero or can be in frcations also

It is an experimental fact.

• The number of molecules that collide in single step reaction to form product is known as molecularity of reaction.

It cannot be zero or in fractions

It is a theoretical concept

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