What is pseudo bimolecular reaction?

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Answer

I think those reaction expected to the higher order but actual order is 1 ,called pseudo bi......... reaction.

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The reaction which appears to be of 2nd order reaction

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Priyanshi but that's pseudo unimolecular

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Pseudo bimolecular reactions are those which have molecularity 2 i.e. 2 molecules are reactants but one of the reactants is in excesstherefore order is 1 as the excess reactant does not change the order of reaction

Answer

Pseudo Bimolecular Reaction

A pseudo bimolecular reaction, also known as a pseudo second-order reaction, is a type of chemical reaction that appears to follow second-order kinetics but actually involves two first-order reactions occurring simultaneously. In this reaction, two reactants come together to form a product, and the rate of the reaction is primarily dependent on the concentration of both reactants.

Key Points:
- Pseudo bimolecular reactions involve two reactants, and the overall rate of the reaction is determined by the concentration of both reactants.
- This reaction type is often observed in cases where two reactants come together to form a product, but the reaction does not follow true second-order kinetics.
- Pseudo bimolecular reactions can occur in a variety of chemical systems, including organic and inorganic reactions.
- The reaction rate is determined by the rate constant and the concentrations of the reactants, following the rate equation: rate = k[A][B].
- The rate constant, k, is specific to the reaction and depends on factors such as temperature, reaction mechanism, and the nature of the reactants.
- Pseudo bimolecular reactions can be experimentally identified by conducting the reaction at different initial concentrations of the reactants and observing the effect on the reaction rate.
- If the reaction rate is directly proportional to the concentration of both reactants and the reaction order with respect to each reactant is one, it suggests a pseudo bimolecular reaction.
- Pseudo bimolecular reactions are often encountered in biological systems, such as enzyme-substrate reactions, where the binding of the enzyme and substrate is an essential step in the reaction mechanism.
- Understanding the kinetics and mechanism of pseudo bimolecular reactions is crucial for various fields, including chemical engineering, pharmaceutical research, and environmental studies.
- By studying pseudo bimolecular reactions, scientists can gain insights into reaction mechanisms, develop efficient catalytic processes, and optimize reaction conditions for desired outcomes.

In conclusion, a pseudo bimolecular reaction is a type of chemical reaction that mimics second-order kinetics but is actually composed of two first-order reactions occurring simultaneously. These reactions are characterized by the dependence of the reaction rate on the concentrations of both reactants. Understanding and studying pseudo bimolecular reactions are important in various scientific fields for the development of efficient processes and the optimization of reaction conditions.

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