Homogeneous catalysis is used over heterogeneous for the following reasons 1)There are more complicated catalytical sites (chemically and geometrically) which gives improved selectivity to a certain product 2) The catalysts are usually in solution and so access to the reagents is easier so there is improved activity and milder reaction conditions can be used. 3) Another advantage of the catalysts being in solution is that the heat transfer for highly exothermic or endothermic reactions is not a problem 4)Mechanisms are better understood.
Advantage of heterogeneous catalysis is that the catalyst is usually solid and therefore is easier to extract and recycle.
A homogenous catalyst is in the same phase as the reactancts. A heterogenous catalyst is in a different phase to the reactants. For example, if all the starting materials in the reaction were liquids and you were using a liquid catalyst, then this would be homogenous catalysis. Other examples include the action of gaseous chlorine atoms to break down gaseous ozone in the atmosphere. In industry, heterogenous catalysts are generally used. This is often in the form of solid metals like iron and gaseous reactants. Metals are good catalysts are usually solid, so any time you use a metal catalyst you will have heterogenous catalysis as the reactants won't also be solids.
Heterogenous catalysts are at a different phase from reactants and products. But homogeneous catalysts are in the same phase as the reactant and the product.
Eg:
Acetals in the presence of an acid like HCl in liquid phase gives Ketones.
The presence of solid Platinum in Hydrogen Peroxide catalyzes the decomposition to a faster rate.
A heterogeneous catalyst is a solid not mixed with the chemical reactants.
A homogeneous catalyst is a liquid mixed with the chemical reactants.
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homogeneous- same heterogeneous - opposite
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I'm sorry, but you wrote "Difference between homogeneous and homogeneous?" If you meant the difference between homogeneous and heterogeneous, then heterogeneous nucleation is: the nucleation beginning at the surface of foreign particles. Homogeneous is: The process of creation of vapor bubble nuclei in a superheated liquid away from bounding walls and in the absence of any foreign material. Hoped that helped. :)
A homogeneous mixture is one in which all components are uniformly distributed throughout the mixture. In a heterogeneous mixture the components are not evenly distributed throughout the mixture.
The difference between heterogeneous and homogenous mixture is that in homogenous the compound totally dissolves and we cannot determine the compounds as water and sodium chloride ( salt ).and heterogeneous mixture totally describes the compounds present in it. For example : biryani .
strictly speaking soluble enzymes are homogeneous catalysts and membrane-bound enzymes are heterogeneous.
homogeneous- same heterogeneous - opposite
The difference between a homogeneous and a heterogeneous catalyst is that in a heterogeneous catalyst, it is in a different phase from the reactants. However, in a homogeneous catalyst, it is in the same phase as the reactants.
homogeneous = same and the heterogeneous = different
one way to tell the difference between homogeneous and heterogeneous is that homogeneous is clear and heterogeneous isn't. by alison the 7th grader
The heterogeneous catalyst is not mixed with the reactants.
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A Homogeneous database will have only one DBMS, while heterogeneous databases have multiple DBMS's
I'm sorry, but you wrote "Difference between homogeneous and homogeneous?" If you meant the difference between homogeneous and heterogeneous, then heterogeneous nucleation is: the nucleation beginning at the surface of foreign particles. Homogeneous is: The process of creation of vapor bubble nuclei in a superheated liquid away from bounding walls and in the absence of any foreign material. Hoped that helped. :)
Homogeneous or Truebreeding is when both allels of the organism are the same. Heterogeneous is when they are different
The difference is that in a diagram that is heterogeneous there are many different shapes in the diagram, whereas in homogeneous diagrams all the shapes in the diagram are exactly the same.