What are the characteristics of electrolyte solution conduction

The conduction mechanism of an electrolyte solution is different from that of a metal that relies on free electrons.

In addition to metals, graphite and some metal oxides also belong to electronic conductors, the characteristics of this type of conductor are that when the current passes, the conductor itself does not undergo any chemical inverse changes, and the conductivity of the electrolytic solution depends on the directional motion of ions, so it is called an ionic conductor, but this kind of conductor must be accompanied by the electrode and the solution interface at the same time as the electrode and the solution of the electrode at the same time, generally speaking, anion.

Oxidation occurs with the loss of electrons on the anode.

The lost electrons flow to the positive electrode of the power supply cation through the outer circuit.

The electrons provided by the negative electrode of the external power supply are reduced at the cathode, and only then can the entire circuit pass through the current, and any section in the circuit, whether it is a metal wire, an electrolyte solution, or an interface between the electrode and the solution, must have the same amount of electricity passing through in the same amount of time.

The ions in the electrolyte solution are in a chaotic thermal motion all the time when there is no external force, and the total displacement of the particles in all directions is zero in a certain time interval, but under the action of external forces, the ions will move a little more in one direction than in other directions, so there is a certain net displacement if the ions are in an external electric field.

The electromigration of ions is not only the migration of matter, but also the migration of charge, so the electromigration of ions can form an electric current in the solution, because the positive and negative ions migrate in opposite directions, so their conductive effect is the same, that is to say, the positive and negative ions conduct electricity in the same direction, and the conductive process of the electrolyte solution must have both the directional migration process of the ions in the electrolyte solution and the chemical reaction of the substances on the electrode.

The process of both is indispensable without it, otherwise it is impossible to form a continuous current.

Conductivity of solutions in junior high chemistry.

The electrical conductivity of a solution is related to a variety of factors, which mainly include:1ion concentration, under the same conditions, the ion concentration is large and the conductivity is strong.

2.The number of charges carried by an ion, the higher the charge of the ion, the stronger the conductivity. 3.

The strength of the electrolyte, under the same conditions, the conductivity of the strong electrolyte solution is greater than that of the weak electrolyte solution. 4.The temperature of the solution, the higher the temperature, the stronger the conductivity.

5.The type of electrolyte, under the same conditions, the type of electrolyte is different, and the conductivity is also different. For example, at the same temperature, the conductivity of CaCl2 and NaCl solutions of the same concentration is different, and the weak conductivity of the solution does not indicate that the ionization degree of the electrolyte is small, even if the aqueous solution with a strong electrolyte has a small ion concentration, the conductivity is also weak.