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 adsorbed molecules interact with each other
• D. the adsorption takes place in multilayers

Answer 1

Answer: (A)

the adsorption sites are equivalent in their ability to adsorb the particles

Langmuir adsorption isotherm is based on the assumption that every adsorption site is equivalent and that the ability of a particle to bind there is independent of whether nearly sites are occupied or not.