The Langmuir adsorption isotherm is deduced using the assumption
the adsorption sites are equivalent in their ability to adsorb the particles
the heat of adsorption varies with coverage
the adsorbed molecules interact with each other
the adsorption takes place in multilayers.
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 nearby sites
are occupied or not occupied.
MCQ (Single Correct Answer)
A plot of log(x/m) versus log p for the adsorption of a gas on a solid gives a straight line with slope equal to
$$-$$ log K
According to Freundlich adsorption isotherm, in the median range of pressure