JEE Advanced · Chemistry · 19. Surface Chemistry
The correct option(s) related to adsorption processes is(are)
- A Chemisorption results in a unimolecular layer.
- B The enthalpy change during physisorption is in the range of to .
- C Chemisorption is an endothermic process.
- D Lowering the temperature favours physisorption processes.
Answer & Solution
Correct Answer
(D) Lowering the temperature favours physisorption processes.
Step-by-step Solution
Detailed explanation
(A) First statement is correct as chemisorption results in a unimolecular layer and physisorption result in a multimolecular layer. (B) Second statement is incorrect as enthalpy change during physisorption is of the range of .Gases with higher critical temperatures are readily adsorbed
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