Low Pressure, High Affinity
Pressure (P): 0.1 atm; Langmuir Constant (K): 10 atm⁻¹
Fractional Surface Coverage (θ): 0.5
Langmuir Isotherm Calculator
Chemistry0.0(0)
Calculates the fractional surface coverage (θ) based on the Langmuir adsorption isotherm model, which describes the equilibrium between adsorption and desorption of a gas on a solid surface.
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How To Use
How to use this calculator
Start with your values, or try a preset.
Step 1
Enter Pressure (P) and Langmuir Constant (K) in the units shown.
Step 2
Read Fractional Surface Coverage (θ) in the results panel. Results update as you change the inputs.
Step 3
Choose a preset to load an example, then adjust the values for your situation.
Worked Examples
Example calculations
See the inputs and their calculated results.
High Pressure, Low Affinity
Pressure (P): 10 atm; Langmuir Constant (K): 0.1 atm⁻¹
Fractional Surface Coverage (θ): 0.5
Moderate Pressure and Affinity
Pressure (P): 1 atm; Langmuir Constant (K): 1 atm⁻¹
Fractional Surface Coverage (θ): 0.5
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