Equal volumes of ideal gases at the same temperature and pressure contain equal amounts of substance. Named after Amedeo Avogadro. From , is common to them.
Avogadro's law states that, at constant temperature and pressure, equal volumes of gases contain an equal number of molecules, regardless of the type of gas. This means that the volume of a gas is directly proportional to the number of moles (or molecules) of the gas when temperature and pressure are kept constant.
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