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What role does adsorption play in hetero...

What role does adsorption play in heterogenous catalysis ?

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In heterogenous catalysis, the molecules of the reactants are adsorbed on the surface of catalyst. The increased concentration of the reactants on the surface influences the rate of reaction.
Adsorption being an exothermic process, the heat of adsorption is take by the reactant molecule to increase their chemical active
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