Question

Differentiate between order of reaction and molecularity of reaction

Answer 1

The rate of a chemical reaction can mainly depend on the temperature and pressure of the system, the concentration of the reactants present, presence or absence of catalysts and the nature of reactants. However, the rate of the reaction is calculated considering the rate determining step. Some chemical reactions have only one step, but some reactions occur in several steps. In that case, the rate of the reaction is determined by the slowest step. Molecularity and order of reaction are two terms used regarding the rate of reactions. The main difference between molecularity and order of reaction is that molecularity is a theoretical concept whereas order of reaction can be determined experimentally.

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