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Avogadro's law
noun
, Chemistry.
- the principle that equal volumes of all gases at the same temperature and pressure contain the same number of molecules. Thus, the molar volume of all ideal gases at 0° C and a pressure of 1 atm. is 22.4 liters.
Avogadro's law
noun
- the principle that equal volumes of all gases contain the same number of molecules at the same temperature and pressure
Avogadro's law
/ ä′və-gä′drōz /
- The principle that equal volumes of all gases under identical conditions of pressure and temperature contain the same number of molecules. Avogadro's law is true only for ideal gases (gases in which there is no interaction between the individual molecules).
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Word History and Origins
Origin of Avogadro's law1
First recorded in 1870–75; named after A. Avogadro
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