Why do gases obey the simple ideal gas law so well? Even gases of more complicated entities such as CH4 behave the same way. This fact suggests that the internal structure of the entities has little, if anything, to do with the gas law. The observed similarities of the properties of all gases must arise from properties that are common to all atoms and molecules. What then is the least we need to assume about the particles of gas that will explain the gas law?
KeywordsFree Path Hard Sphere Atomic Model Hydrogen Molecule Helium Atom
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