Gas Laws

Key Questions

  • Avogadro's law states that,
    "Equal volumes of all gases, at the same temperature and pressure, have the same number of molecules".

    This law explains how, under the same condition of temperature and pressure, equal volumes of all gases contain the same number of molecules.

    Thus, when comparing the volumes and number of molecules of two gases, the law can be expressed as follows:

    enter image source here

Questions