Effusion of helium
Helium gas effuses through a porous cup, demonstrating the effect of the size and mass of molecules.
physical properties
Effusion of methane
Methane gas effuses through a porous cup, demonstrating the effect of the size and mass of molecules.
Effusion of nitrogen
Nitrogen gas effuses through a porous cup, demonstrating the effect of the size and mass of molecules.
Effusion of oxygen
Oxygen gas effuses through a porous cup, demonstrating the effect of the size and mass of molecules.
Effusion of carbon dioxide
Carbon dioxide gas effuses through a porous cup, demonstrating the effect of the size and mass of molecules.
Effusion of sulfur hexafluoride
Sulfur hexafluoride gas effuses through a porous cup, demonstrating the effect of the size and mass of molecules.
Rising balloons
Balloons filled with gases less dense than air will rise.
Falling balloons
Balloons filled with gases more dense than air will fall.