Why are solutes generally more soluble at elevated temperature?
Why? Because we supply the energy to break the solute-solute interaction..........
When a solute is dissolved in a solvent, we break the bonds that exist between particles in the SOLID STATE. It is intuitively reasonable that if we raise the temperature, in fact we supply some of the energy to break these solute-solute interactions.
Most of the time, we could represent a dissolution reactions as: