In the Langmuir adsorption isotherm, what does the term 'monolayer coverage' ref

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Question: In the Langmuir adsorption isotherm, what does the term \'monolayer coverage\' refer to?

Options:

Correct Answer: Complete saturation of the surface

Solution:

Monolayer coverage in the Langmuir isotherm indicates that all available adsorption sites on the surface are occupied by adsorbate molecules.

In the Langmuir adsorption isotherm, what does the term 'monolayer coverage' refer to?

In the Langmuir adsorption isotherm, what does the term 'monolayer coverage' refer to?

Step 1: Understand what adsorption means. Adsorption is when molecules stick to a surface.
Step 2: Know that a surface has a limited number of spots where molecules can stick, called adsorption sites.
Step 3: Realize that 'monolayer' means a single layer. So, monolayer coverage means one complete layer of molecules on the surface.
Step 4: In monolayer coverage, every available adsorption site on the surface is filled with an adsorbate molecule.
Step 5: This means there are no empty spots left for more molecules to stick to the surface.

Langmuir Adsorption Isotherm – A model that describes the adsorption of molecules onto a solid surface, assuming a fixed number of identical sites and that each site can hold only one molecule.
Monolayer Coverage – The condition where all available adsorption sites on a surface are occupied by adsorbate molecules, indicating maximum adsorption capacity.