Question

19. How does the solubility of a substance change
a) rise in temperature.
b) fall in temperature​

Answer 1

Explanation:

yes,the solubility of a substance change with temperature. on increasing temperature,the interparticular space between the molecules of substance increases , this increases their solubility. for example,more salt can be dissolved in hot water than cold ones of same volume.

Answer 2

Answer:

For many solids dissolved in liquid water, the solubility increases with temperature. The increase in kinetic energy that comes with higher temperatures allows the solvent molecules to more effectively break apart the solute molecules that are held together by intermolecular attractions.