alleryAdsorption held by weak van der Waals forces is called:
ASublimation
BPhysisorption
CChemisorption
DDesorption
Answer & Solution
Correct answer: B. Physisorption
1. Two kinds of adsorption are distinguished by the forces at work.
2. Weak van der Waals forces hold the gas in one of them.
3. That kind is physisorption, or physical adsorption.
_Source: syllabus Chemistry Part I, Chapter 5, Surface Chemistry._
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