The Langmuir adsorption model explains adsorption by assuming an adsorbate behaves as an ideal gas at isothermal conditions. According to the model, adsorption and desorption are reversible processes.
The Langmuir isotherm describes the maximum amount of gas that a shale can hold at a specified pressure and temperature. Several factors may result in a shale holding less than the maximum amount of gas as represented by the isotherm. Such shales are termed undersaturated.
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The Langmuir adsorption model explains adsorption by assuming an adsorbate behaves as an ideal gas at isothermal conditions. According to the model, adsorption and desorption are reversible processes.
Answer:
The Langmuir isotherm describes the maximum amount of gas that a shale can hold at a specified pressure and temperature. Several factors may result in a shale holding less than the maximum amount of gas as represented by the isotherm. Such shales are termed undersaturated.