Important question — Difference between the Molecularity and order of Reaction

👉Molecularity👈

(1) It is the number of atoms, molecules or ions of reactants taking part in the reactions.

(2) It is always equal to number of molecules taking part in the reaction.

(3) It is always an integer value. It cannot be Zero, fractional or negative.

(4) It suggest the number of molecules taking part in a step of the reaction.

(5) It is related to a specific step of reaction.

(6) It can be determined from the equation.

(7) It gives mechanism of the reaction.

👉Order of Reaction👈

(1) It is the number of atoms, molecules or ions of reactants whose concentration affect the rate of Reaction.

(2) It is not, always, equal to number of molecules taking part in the reaction.

(3) It may be Zero, fractional or negative value.

(4) It is experimental number and depends on concentration of reactants.

(5) It is related to the entire reaction.

(6) It is determined by the experiment.

(7) It is related to Chemical kinetics of the reaction.

🙂Amar Singh sisodiya 🙂

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