Question

The langmuir adsorption isotherm is deduced using the assumption:

• A. The adsorption sites are equivalent in their ability to adsorb the particles
• B. The heat of adsorption varies with coverage
• C. The adsorption molecules interact with each other
• D. The adsorption takes place in multiplayers

Answer 1

The correct option is A The adsorption sites are equivalent in their ability to adsorb the particles

Langmuir adsorption:
$\to$ All adsorption sites are equivalent
$\to$ No interaction of particles
$\to$ Monolayer formed.
$\to$ Heat of adsorption doesn't vary with coverage