what is catalyst andgive ten points and example of catalyst
Answers
Explanation:
Catalysis is the process of increasing the rate of a chemical reaction by adding a substance known as a catalyst
catalyst which is not consumed in the catalyzed reaction and can continue to act repeatedly.
only very small amounts of catalyst are required to alter the reaction rate in principle
chemical reactions occur faster in the presence of a catalyst because the catalyst provides an alternative reaction pathway with a lower activation energy than the non-catalyzed mechanism.
In catalyzed mechanisms, the catalyst usually reacts to form a temporary intermediate, which then regenerates the original catalyst in a cyclic process
Catalysts may be classified as either homogeneous or heterogeneous
Enzymes and other biocatalysts are often considered as a third category.
Heterogeneous catalysts act in a different phase than the reactants
heterogeneous catalyst has active sites, which are the atoms or crystal faces where the reaction actually occurs.
Homogeneous catalysts function in the same phase as the reactants
eg In the Haber process, finely divided iron serves as a catalyst for the synthesis of ammonia from nitrogen and hydrogen.
Answer: A catalyst is a Reagent or a substance that can alter the speed of a chemical reaction ( i.e increase or decrease the rate of reaction) but it never takes part in the reaction itself .
Explanation: EXAMPLE - pt ( platinum) is a very good catalyst and is used in catalytic oxidation of Ammonia