May 2024
Intermediate to advanced
592 pages
25h 27m
English
Chapter 5: Surface Chemistry
Test Your Concepts-I
1. Physisorption always takes place below the boiling point of the adsorbate.
Hence, the correct answer is (b).
2. The hydrogen gas molecule dissociate onto the surface and gain more degrees of freedom. This results in a positive enthalpy change as well as positive entropy change.
Hence, the correct answer is (a, d).
3. Physisorption is always non dissociative but chemisorption can be dissociative as well as non dissociative. Since Ammonia molecule has lone pairs, its adsorption would be non-dissociative.
Hence, the correct answer is (b, c).
4. (b) and (d) represent adsorption whereas (a) and (c) represent absorption.
Hence, the correct answer is (a, c).
5. It starts with fast adsorption followed ...
