Answer
The Nernst Equation, developed by Walther Nernst, is a cornerstone of modern electrochemistry. It establishes a relationship between the electromotive force (EMF) of an electrochemical cell and the concentrations of reactants and products. This equation allows scientists to predict the direction and extent of electrochemical reactions, which is crucial for understanding and manipulating electrochemical systems, such as batteries, fuel cells, and corrosion processes.