from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An equation of state that relates the pressure, volume, and absolute temperature of a gas taking into account the finite size of molecules, and their intermolecular attraction, having the form RT = (P + av-2)(v - b), where R is the gas constant, T is the absolute temperature, P is the pressure, v is the volume, and a and b are constants.
After Johannes Diderik van der Waals (1837-1923), Dutch physicist.(American Heritage® Dictionary of the English Language, Fourth Edition)
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