Gas diffusion. Gas diffusion is demonstrated using nitrogen dioxide (NO2) gas. Nitrogen dioxide is heavier (more dense) than air and has a characteristic brown colour. A jar filled with nitrogen dioxide is placed under an inverted glass (left frame). After 13.5 min the gas uniformly fills the whole volume under the glass (right frame). | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Science Source / Turtle Rock Scientific |
Taille de l’image : | 5400 px × 4529 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |