Question

what do you understand by homogenous and heterogenous catalyst ​

Answer 1

Answer:

Homogeneous are those which exits in the same phase as the reactants.

Where as

hetrogenous are not in same phase as reactants.

Answer 2

Answer:

Heterogeneous Catalysis

Heterogeneous catalysis is a type of catalysis in which the catalyst occupies a different phase than the reaction mixture.

Catalysts are chemical compounds that increase the rate of a reaction by lowering the activation energy required to reach the transition state. Unlike reactants, a catalyst is not consumed as part of the reaction process. The process of speeding up a reaction by using a catalyst is known as catalysis.

Advantages and Disadvantages of Heterogeneous Catalysis

Heterogeneous catalysis has a number of benefits. For one, heterogeneous catalysts can be separated from a reaction mixture in a straightforward manner, such as by filtration. In this way, expensive catalysts can be easily and effectively recovered, which is an important consideration for industrial manufacturing processes.

Homogeneous Catalysis

Homogeneous catalysis is a class of catalysis in which the catalyst occupies the same phase as the reactants.

Catalysts are compounds that, when added to chemical reactions, reduce the activation energy and increase the reaction rate. The amount of a catalyst does not change during a reaction, as it is not consumed as part of the reaction process.

Examples of Homogeneous Catalysts

Acid catalysis, organometallic catalysis, and enzymatic catalysis are examples of homogeneous catalysis. Most often, homogeneous catalysis involves the introduction of an aqueous phase catalyst into an aqueous solution of reactants. In such cases, acids and bases are often very effective catalysts, as they can speed up reactions by affecting bond polarization.

Advantage of homogeneous

An advantage of homogeneous catalysis is that the catalyst mixes into the reaction mixture, allowing a very high degree of interaction between catalyst and reactant molecules. However, unlike with heterogeneous catalysis, the homogeneous catalyst is often irrecoverable after the reaction has run to completion.

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