AP EAMCET · Chemistry · Surface Chemistry
Assertion (A) Adsorption is an exothermic process.
Reason (R) Physisorption of a gas on a solid surface is normally reversible.
- A Both \(A\) and \(R\) are correct and \(R\) is the correct. explanation of \(\mathrm{A}\).
- B Both \(A\) and \(R\) are correct but \(R\) is not the correct explanation of \(\mathrm{A}\).
- C \(\mathrm{A}\) is correct but \(\mathrm{R}\) is incorrect.
- D \(A\) is incorrect but \(R\) is correct.
Answer & Solution
Correct Answer
(B) Both \(A\) and \(R\) are correct but \(R\) is not the correct explanation of \(\mathrm{A}\).
Step-by-step Solution
Detailed explanation
Both Assertion and Reason are correct but Reason is not the correct explanation of Assertion. The correct reason for given assertion is as follows : When a gas is adsorbed on a solid surface, its movement is restricted. This leads to a decrease in the entropy of the gas i.e.…
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