Catalysis

Catalysis

Catalysis (/kəˈtælɪsɪs/ kə-TAL-ə-sis) is the process of increasing the rate of a chemical reaction by adding a substance known as a catalyst (/ˈkætəlɪst/ KAT-əl-ist), which is not consumed in the catalyzed reaction and can continue to act repeatedly.

Etymology

The term "catalysis" comes from the Greek κατά (kata), meaning "down," and λύσις (lúsis), meaning "loosening."

Related Terms

• Catalyst: A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
• Enzyme: A type of protein that acts as a catalyst in living organisms, regulating the rate at which chemical reactions proceed without itself being altered in the process.
• Reaction Rate: The speed at which reactants are converted into products in a chemical reaction.
• Chemical Reaction: A process that leads to the transformation of one set of chemical substances to another.
• Substrate: The molecule upon which an enzyme acts.

See Also

• Chemical Kinetics
• Enzyme Kinetics
• Homogeneous Catalysis
• Heterogeneous Catalysis
• Biocatalysis

External links

• Medical encyclopedia article on Catalysis
• Wikipedia's article - Catalysis

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