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In the Langmuir adsorption isotherm, what does the term 'K' represent?

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Question: In the Langmuir adsorption isotherm, what does the term \'K\' represent?

Options:

  1. Adsorption capacity
  2. Rate constant
  3. Equilibrium constant
  4. Surface area

Correct Answer: Equilibrium constant

Solution: 

In the Langmuir isotherm, \'K\' is the equilibrium constant that relates the concentration of adsorbate in the gas phase to the amount adsorbed on the surface.

In the Langmuir adsorption isotherm, what does the term 'K' represent?

Practice Questions

Q1
In the Langmuir adsorption isotherm, what does the term 'K' represent?
  1. Adsorption capacity
  2. Rate constant
  3. Equilibrium constant
  4. Surface area

Questions & Step-by-Step Solutions

In the Langmuir adsorption isotherm, what does the term 'K' represent?
  • Step 1: Understand that the Langmuir adsorption isotherm is a model that describes how molecules (adsorbate) stick to a surface (adsorbent).
  • Step 2: Recognize that 'K' is a symbol used in this model.
  • Step 3: Know that 'K' represents the equilibrium constant.
  • Step 4: Realize that the equilibrium constant 'K' shows the relationship between the amount of adsorbate in the gas phase and the amount that is stuck to the surface.
  • Step 5: Conclude that a higher 'K' value means more adsorbate is sticking to the surface at equilibrium.
  • Langmuir Adsorption Isotherm – A model that describes the adsorption of molecules onto a solid surface, assuming a fixed number of adsorption sites and no interactions between adsorbed molecules.
  • Equilibrium Constant (K) – A value that quantifies the ratio of the concentration of adsorbate in the gas phase to the concentration of adsorbate on the surface at equilibrium.
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