Explain Langmuir's theory of monomolecular films.
When we consider gases interacting with a solid surface, like glass or platinum, it is not a random piling up of molecules. Instead, the evidence strongly suggests a monomolecular layer forms. My theory posits that gas molecules striking a clean surface will stick, or adsorb, until the surface is covered by a single layer of molecules. These adsorbed molecules then form a distinct layer, a 'film' of one molecule's thickness. The forces between the surface and the gas molecules, as well as the forces between the gas molecules themselves, dictate how many will stick. This concept of a monomolecular layer is fundamental to understanding surface phenomena.
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