47.The principle that equal volumes of all gases contain the same number of molecules when under the same conditions of pressure and temperature was given by? [A] Dmitri Mendeleyev [B] Jons Jacob Berzelius [C] Amedeo Avogadro [D] John Dalton Show Answer
Avogadro's law, a statement that under the same conditions of temperature and pressure, equal volumes of different gases contain an equal number of molecules.
