The Nernst effect is a phenomenon that was predicted and measured by German theoretical physicist Linus David Langmuir. The effect was discovered during the study of hydrogen diffusion in metals and became one of the most important experimental results for understanding the mechanisms of charge transfer in solids.
In 1914, the great German chemist and physicist Theodor Nernst proposed the law that the change in thermodynamic potential depends on the number of charged particles in the system. This conclusion was based on the idea of the existence of an electric potential in a liquid. Nernst's law refers to the steady state when the system is in equilibrium and all particles have the same concentration and the same charge.
**The essence of the Nernst effect** is that the electric potential of the applied voltage on the electrodes is determined by the concentration of ions in the solution. This means that the higher the concentration of solute in the water, the higher the voltage will be. Nernst's theory, based on particle concentration, explains how electrochemical potential and electric current are related to each other.
Nernst's theory has become an important tool for researchers who study electrochemical processes and conduct scientific research. It also makes predictions about how different types of ions interact and which ones will move faster or slower under certain conditions. This theory is still the basis of much modern research in electrochemistry.