Basic Assumptions of The Model
Inherent within this model, the following assumptions are valid specifically for the simplest case: the adsorption of a single adsorbate onto a series of equivalent sites on the surface of the solid.
- The surface containing the adsorbing sites is perfectly flat plane with no corrugations (assume the surface is homogeneous) .
- The adsorbing gas adsorbs into an immobile state.
- All sites are equivalent.
- Each site can hold at most one molecule of A (mono-layer coverage only).
- There are no interactions between adsorbate molecules on adjacent sites.
Read more about this topic: Langmuir Adsorption Model
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