Dictionary > Homogeneous catalysis

Homogeneous catalysis

Definition
noun
(chemistry) A form of catalysis wherein the catalyst is in the same physical state as that of the reactants
Supplement
Catalysis helps to speed up a chemical reaction. An agent added to the chemical reaction to promote catalysis is called a catalyst. There are two forms of catalysis and they are characterized based on the catalyst involved in the process. A form of catalysis in which the catalyst is in the same physical state as that of the reactants in the chemical reaction is referred to as homogeneous catalysis. An example of a homogeneous catalysis is one wherein the catalyst and the reactants are in the gaseous phase. An example is acid catalysis. The acid dissolved in water produces a proton that speeds up chemical reaction, such as in the hydrolysis of esters. Without the acid, the hydrolysis of ester in aqueous solution does not hydrolyze at a faster rate. Another example is organocatalysis. Soluble organometallic compounds act as catalyst in certain chemical reactions, particularly in the hydroformylation and transfer hydrogenation.
In contrast, heterogeneous catalysis is a form of catalysis wherein the reactants and the catalysts are in different physical state, such as that one involving solid catalysts acting on substrates in a liquid or gaseous phase.
Compare:

See also:

  • catalysis
  • organocatalysis


    You will also like...

    Young plant growing from the soil.
    Soils

    Nutrients in the soil are essential to the proper growth of a land plant. This tutorial deals with the properties of soi..

    Genetic engineering
    Genetic Engineering Advantages & Disadvantages

    This tutorial presents the benefits and the possible adverse eventualities of genetic engineering. Know more about this ..

    Growth Patterns
    Growth Patterns

    This tutorial describes the sigmoid curve, annual plant growth, tree growth, human growth, and insect growth as the grow..

    Lights' Effect on Growth
    Lights’ Effect on Growth

    This tutorial elaborates on the effect of light on plant growth. It describes how different plants require different amo..

    Geological Periods
    Geological Periods

    Geological periods is a study guide that cites the different geological periods on Earth's timeline. Each has a brief ov..

    Independent Assortment and Crossing Over
    Independent Assortment and Crossing Over

    This tutorial describes the independent assortment of chromosomes and crossing over as important events in meiosis. Read..