In chemistry, what does an increase in temperature generally do to the solubility of solids in liquids?

An increase in temperature generally increases the solubility of solids in liquids due to the added kinetic energy that causes the solute particles to move more vigorously. When the temperature rises, the molecules of the solvent also move faster, which enhances the interaction between solute and solvent molecules. This greater movement enables the solvent to break apart the solute particles more effectively, allowing more solid solute to dissolve.

This phenomenon is particularly evident in many common solids, such as table salt (sodium chloride) and sugar, where elevated temperatures lead to a higher amount of the solid dissolving in the solvent. The direct relationship between temperature and solubility for solids is a fundamental principle in chemistry.