Advertisements
Advertisements
Question
Give two important characteristics of physisorption.
Solution
Important characteristics of physisorption:
- It is reversible.
- It has a low heat of adsorption.
- It has weak van der Waals forces of attraction with adsorbent.
- It increases with an increase in pressure.
- It forms a multimolecular layer.
APPEARS IN
RELATED QUESTIONS
For Freundlich isotherm a graph of log `"x"/"m"` is plotted against log p. The slope of the line and its y-axis intercept respectively corresponds to ____________.
Which of the following is incorrect for physisorption?
Which one of the following characteristics are associated with adsorption?
Adsorption of a gas on solid metal surface is spontaneous and exothermic, then ____________.
Differentiate physisorption and chemisorption.
Which will be adsorbed more readily on the surface of charcoal and why? NH3 or O2?
Heat of adsorption is greater for chemisorptions than physisorption. Why?
What are the factors which influence the adsorption of a gas on a solid?
Why is desorption important for a substance to act as a good catalyst?
Which one of the is not a surfactant?
