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The Langmuir adsorption isotherm is deduced using the assumption:

  1. A
    The adsorption takes place in multilayers
  2. B
    The adsorption sites are equivalent in their ability to adsorb the particles
  3. C
    The heat of adsorption varies with coverage
  4. D
    The adsorbed molecules interact with each other

Solution & Step-by-step Explanation

Key assumptions of the Langmuir model:Adsorption is limited to a monolayer.All adsorption sites are equivalent (homogeneous surface).No interactions between adsorbed molecules on adjacent sites.The heat of adsorption is independent of the coverage.

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The Langmuir adsorption isotherm is deduced using the assumption:
A
The adsorption takes place in multilayers
B
The adsorption sites are equivalent in their ability to adsorb the particles
C
The heat of adsorption varies with coverage
D
The adsorbed molecules interact with each other

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Surface ChemistryAdsorption Isotherm

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