Electrolytes are substances that dissociate into ions in solution, allowing them to conduct electricity. Their ability to conduct electricity is determined by the presence of these charged particles. The freezing point of a solution can be lowered due to the presence of solutes, a phenomenon known as freezing point depression, which can be calculated using the Van't Hoff factor. This factor indicates the number of particles into which a solute dissociates in solution. The discussion highlights the importance of understanding these concepts in chemistry, despite the challenges of communicating effectively in a mobile format.