SELECT * FROM question_mgmt as q WHERE id=665 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=3 AND subId=9 AND chapterId=60 and ex_no='1' AND status=1 ORDER BY CAST(question_no AS UNSIGNED) CBSE Free NCERT Solution of 12th chemistry Surface Chemistry what is the role of desorption in the process of c

Question:

What is the role of desorption in the process of catalysis?

Answer:

Desorption is a phenomenon where a substance is released from or through the surface on which it is adsorbed. It is opposite of adsorption process. Catalyst can be any chemical entity which helps in increasing the rate of reaction, but they itself do not take part in reaction i.e. they just support the chemical reaction to occur effectively. For catylytic action, the reactants get adsorbed on the surface of the catalyst and gets converted into the product after the specified procedure. The product or the unreacted reactant has to be removed from the surface of catalyst, desorption helps in removal of the reactant and product form the surface of catalyst and makes it free for the next reaction.


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