Blue colored water moves up a capillary tube demonstrating capillary action caused by adhesion between the polar water molecules and the glass which is also polar. The demonstration also reveals the effects of cohesion - the attraction between water molecules that causes them to stick together. The blue is from food colouring added to enhance the visual of the water in the tube | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Shields, Martin |
Bildgröße: | 5040 px × 3330 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: |
|