Question

As per __ law, equal volumes of all gases under the same conditions of temperature and pressure contain an equal number of molecules.

Answer 1

As per Avogadro’s law, equal volumes of all gases under the same conditions of temperature and pressure contain an equal number of molecules.

Avogadro's law states that, "equal volumes of all gases, at the same temperature and pressure, have the same number of molecules". For a given mass of an ideal gas, the volume and amount (moles) of the gas are directly proportional if the temperature and pressure are constant.