Conductivity. Demonstration of the electrical conductivity of potassium chloride (KCl) solution. The bulb is connected to a battery and two electrodes,forming an incomplete circuit. Because the solution conducts electricity,a current flows between the electrodes. This completes the circuit and allows the bulb to light. Pure water will not allow a current to flow. Potassium chloride is conductive because it is ionic: it splits into charged particles (ions) of K+ and Cl- in solution. It is these ions which allow the current to flow | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Winters, Charles D. |
Taille de l’image : | 3722 px × 3774 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
|