As the concentration of solute in a solution increases, the conductivity of that solution also tends to increase. This is primarily because conductivity is a measure of a solution’s ability to conduct electricity, which depends on the presence of charged particles (ions) in the solution.
When you add solute, especially ionic compounds, they dissociate into ions. For example, when table salt (sodium chloride) is dissolved in water, it breaks down into sodium ions (Na+) and chloride ions (Cl–). These ions are what carry electrical charge through the solution.
Thus, with a higher concentration of dissolved ions, there are more charge carriers available in the solution to facilitate the flow of electricity. As a result, the electrical conductivity increases. However, it’s important to note that this trend can vary depending on the type of solute and its specific characteristics, but in general, more solute leads to increased conductivity due to higher ion concentration.