How does temperature affect the solubility of solids in liquids?

The solubility of most solids in liquids tends to increase as the temperature rises. When you increase the temperature, the kinetic energy of the molecules in the liquid also increases. This results in more energetic collisions between the solute (solid) and the solvent (liquid), which helps to break apart the solute's crystal lattice more effectively. As these solute molecules enter the solution, the overall solubility increases.

This trend is particularly evident when considering solid salts dissolving in water. For example, when sugar or salt is added to hot water, it dissolves more readily than in cold water. Thus, higher temperatures can generally facilitate a greater amount of solute dissolving in a solvent until it reaches a saturation point.

Other factors such as pressure primarily influence the solubility of gases rather than solids; however, temperature is a crucial factor impacting solid solubility in liquids.