Catalysis (17.7) Flashcards
- Explain the function of a catalyst in terms of reaction mechanisms and potential energy. - List examples of catalysis in natural and industrial processes.
Catalysis
The process of speeding up a chemical reaction using a substance that is not consumed in the reaction.
Catalyst
A substance that lowers the activation energy of a reaction, increasing the reaction rate without being used up.
Homogeneous Catalyst
A catalyst that is in the same phase (solid, liquid, or gas) as the reactants.
Heterogeneous Catalyst
A catalyst that is in a different phase from the reactants, often a solid in contact with gaseous or liquid reactants.
Enzyme
A biological catalyst that speeds up biochemical reactions in living organisms.
Catalytic Converter
A device in cars that uses catalysts to reduce harmful emissions from exhaust gases.
Catalytic Converter
A device in cars that uses catalysts to reduce harmful emissions from exhaust gases.
Activation Energy
The energy needed to start a reaction. Catalysts lower this energy barrier.
Reaction Coordinate Diagram
A graph showing the energy changes during a reaction, including the effect of a catalyst on the activation energy.
