Question

what role does adsorption play in heterogeneous catalysis?

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Answer 1

Answer:

Heterogeneous catalyst is involves catalyst with different physical phase from the reactant .

Example, reactants are in the gas phase while the catalyst are in a solid. The heterogeneous catalyst action can be explained in the term of the adsorption theory.

The mechanism of catalyst involves the following steps:

1. Adsorption of reactant molecules on the catalyst surface.
2. Occurrence of chemical reaction through the formation of in an intermediate.
3. De-sorption of products from the catalyst surface.
4. Diffusion of products asat from the catalyst surface.

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