Science Dictionary » Index H

Example of Homogeneous Catalyst

djeet — Tue, 22 Sep 2009 19:07:12 +0000

Example of Homogeneous Catalyst : Oxidation of sulphur dioxide to form sulphur trioxide in presence of nitric oxide. Here, nitric oxide acts as a catalyst and reactants and catalyst are in same phase i.e. gaseous phase.

Definition of Heterogeneous Catalyst

djeet — Wed, 02 Sep 2009 20:16:21 +0000

When the catalyst has a different phase as that of reactant(s), the catalyst is said to be Heterogeneous catalyst and process in which catalyst takes part is called heterogeneous catalysis.

Definition of Homogeneous Catalyst

djeet — Wed, 02 Sep 2009 20:14:36 +0000

When the catalyst mixes homogenously with the reactant(s) and forms a single phase, the catalyst is said to be Homogenous Catalyst and process is called homogenous catalysis.

Definition of Heterogeneous Catalysis

djeet — Wed, 02 Sep 2009 20:06:04 +0000

The catalytic process in which reactants and catalyst are in different phases is known as Heterogeneous Catalysis and catalyst involved in this process is called of Heterogeneous Catalyst. Usually in heterogeneous catalysis, the reactants are gases and reaction starts from surface of solid catalyst. This is the reason why heterogeneous catalyst is also called ‘surface catalysis’.

Definition of Homogeneous Catalysis

aman — Sat, 22 Aug 2009 14:38:07 +0000

During a chemical reaction, when reactants and catalyst are in same phase, the process is called Homogeneous Catalysis and catalyst involved in this process is called Homogeneous catalyst.