Catalyst

Catalytic promoter: Promoters are substances which when mixed with the catalyst increases its catalytic activity. These substances themselves are not catalysts for the reaction. A…

Catalytic poisons: Substances which, in their presence, reduce the catalytic activity of a catalyst are called catalytic poisons. According to the collision theory, a reaction…

Energy Changes in Catalytic Reactions The question may arise as to how does the catalyst enhance the rate of reactions? This can be explained with…

Characteristics of Catalysts The following characteristics are common to most of the catalytic reactions even though the types may be different. (a) The catalyst remains…

A catalyst is specific in its action. All material bodies cannot act as catalysts in all reactions. A suitable catalyst for a particular reaction is to…

A catalyst cannot, in general, start a reaction. Some reactions, however, cannot start in absence of the catalyst. An example is the reaction between H2 (g)…

Homogeneous catalysis takes place when the catalyst and the other reactants are all dissolved in the same solution. Heterogeneous catalysis typically involves the use of…

Heterogeneous catalysis Heterogeneous catalysis a process where you have one material supporting the actual catalyst for a reaction. If in a catalyzed reaction the catalyst…

Homogeneous catalysis In a reaction, if the catalyst is present in the same phase as the reactants, it is called a homogeneous catalyst and the…

A catalyst is a chemical entity which by virtue of its presence in a reacting system increases or decreases the rate of the reaction, itself…