Catalytic Poisons
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…
Chemistry
Energy Changes in Catalytic Reactions
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
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
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…
Why a Catalyst cannot Start a Reaction?
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)…
Differences between Homogeneous Catalysis and Heterogeneous Catalysis
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 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
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…
Catalyst: Definition and Description
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…
Gas-Solid Systems: Reactions Involving Several Gases
Gas-Solid Systems: Reactions Involving Several Gases When more than one reacting eases are involved in a chemical reaction, the overall rate will depend on the…
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