Langmuir Adsorption Model - Basic Assumptions of The Model

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.

  1. The surface containing the adsorbing sites is perfectly flat plane with no corrugations (assume the surface is homogeneous) .
  2. The adsorbing gas adsorbs into an immobile state.
  3. All sites are equivalent.
  4. Each site can hold at most one molecule of A (mono-layer coverage only).
  5. There are no interactions between adsorbate molecules on adjacent sites.

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