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The Langmuir isotherm assumes that adsorption occurs at specific sites on the su

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Question: The Langmuir isotherm assumes that adsorption occurs at specific sites on the surface. What is the maximum coverage called? (2021)

Options:

  1. Saturation
  2. Monolayer
  3. Multilayer
  4. Equilibrium

Correct Answer: Monolayer

Solution: 

In the Langmuir isotherm, the maximum coverage of adsorbate on the adsorbent is referred to as a monolayer.

The Langmuir isotherm assumes that adsorption occurs at specific sites on the su

Practice Questions

Q1
The Langmuir isotherm assumes that adsorption occurs at specific sites on the surface. What is the maximum coverage called? (2021)
  1. Saturation
  2. Monolayer
  3. Multilayer
  4. Equilibrium

Questions & Step-by-Step Solutions

The Langmuir isotherm assumes that adsorption occurs at specific sites on the surface. What is the maximum coverage called? (2021)
  • Step 1: Understand that the Langmuir isotherm is a model that describes how molecules (adsorbates) stick to a surface (adsorbent).
  • Step 2: Recognize that adsorption happens at specific sites on the surface.
  • Step 3: Know that there is a limit to how many molecules can stick to the surface, which is called coverage.
  • Step 4: The maximum amount of molecules that can stick to the surface is called a monolayer.
  • Langmuir Isotherm – A model that describes the adsorption of molecules onto a solid surface, assuming a fixed number of adsorption sites and that each site can hold only one molecule.
  • Monolayer Coverage – The maximum amount of adsorbate that can be adsorbed on the surface, where all available sites are occupied by the adsorbate.
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