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...

    squirrel
    Animal Water Regulation

    Animals adapt to their environment in aspects of anatomy, physiology, and behavior. This tutorial will help you understa..

    Plant Auxins
    Plant Auxins – Phototropism & Geotropism

    Plants produce hormones to regulate their growth. Auxins, for instance, influence plant growth. Know the role of auxin i..

    Early Earth
    The Origins of Life

    This tutorial digs into the past to investigate the origins of life. The section is split into geological periods in the..

    An artistic depiction of a human embryo
    Growth and Development of a Human Baby

    Upon fertilization, a zygote forms and develops into an embryo. This tutorial elaborates on the growth and development f..

    Wart-like leaf galls on grape leaves
    Plant Cell Defense

    Plants protect themselves by releasing hydrogen peroxide to fight against fungal invasion. Another way is by secreting c..

    Hominid
    The Hominids

    The hominid family diversified from the apes around 6 to 8 million years ago. Since then, the evolutionary path has prov..

    Related Articles...

    No related articles found

    See all Related Topics