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Answer to Question #51209 in Physical Chemistry for JUGNU

Question #51209
Define the following terms:
(i) Catalyst
(ii) Adsorption
Expert's answer
Catalyst – a substance that increases the rate of a reaction without modifying the overall standard Gibbs energy change in the reaction; the process is called catalysis.
Adsorption – anincrease in the concentration of a dissolved substance at the interface of a condensed and a liquid phase due to the operation of surface forces. Adsorption can also occur at the interface of a condensed and a gaseous phase.

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