For which salt in the graph above does the solubility increase most rapidly with rise in temperature?
CaSO4
KNO3
NaCl
KCl
Correct answer is B
For many solids that are dissolved in water or any liquid, the solubility increases with a temperature rise. With an increase in kinetic energy, the solvent molecules effectively break apart the solute molecules that are held together by strong intermolecular attractions, and thereby solubility is increased.