Homogeneous and heterogeneous reactions
From Wikipedia, the free encyclopedia
Homogeneous reactions are chemical reactions in which the reactants are in the same phase, while heterogeneous reactions have reactants in two or more phases. Reactions that take places on the surface of a catalyst of a different phase are also heterogeneous. A reaction between two gases, two liquids or two solids is a homogeneous. A reaction between a gas and a liquid, a gas and a solid or a liquid and a solid is heterogeneous.
Practical applications of heterogeneous reactions are in catalytical converts, fuel cells and chemical vapor deposition among others. Recently, manufacturing engineers have used surface reactions for synthesis of micro and nanoscale features in biomedical devices.
