what is a catalyst explain in brief
Answers
A catalyst is a substance that speeds up a chemical reaction, but is not consumed by the reaction; hence a catalyst can be recovered chemically unchanged at the end of the reaction it has been used to speed up, or catalyze. ... A catalyst works by providing a different route, with lower Ea, for the reaction.......
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A CATALYST IS A SUBSTANCE WHICH ALTERS THE SPEED OF A CHEMICAL REACTION WITHOUT ITSELF TAKING PART IN IT.
*It either Speeds up or slows down the speed of the reaction
IF YOU WANT ANSWER BRIEFLY THEN...Catalysts may be classified as either homogeneous or heterogeneous. A homogeneous catalyst is one whose molecules are dispersed in the same phase (usually gaseous or liquid) as the reactant's molecules. A heterogeneous catalyst is one whose molecules are not in the same phase as the reactant's, which are typically gases or liquids that are adsorbed onto the surface of the solid catalyst