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Mechanism of Adsorption

Which one of ...

Question

Which one of the following statements is wrong about adsorption ?

A

it is a selective and specific process

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B

it is a reversible process

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C

an increase in the gaseous adsorbate causes increase in adsorption. However, at high pressure, the adsorption becomes constant

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D

it is an endothermic process

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Solution

The correct option is D it is an endothermic process
Both physical & chemical adsorptions are exothermic

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