tchr plz can u explain the difference between solvation, dissolution , and solubility..

and also explain hydration energy or solvation energy.. ( iam kind of confused between these two terms ) ..

and how does it affect whether a substance is soluble in a solvent or nt..

and .. is dissolution involves separation of ions, why is that some dissolution processes liberate energy and some absorb energy.? plz explain in detail

ans soon plz

thank u

Solvation is a process in which solute and solvent particles interact with each other to combine.

Dissolution is a process of breaking up of solute and solvent and forming of solute- solvent interactions (solvation).Therefore, solvation is a sub process of dissolution.

The concentration of a saturated solution is called the solubility.

Solvation energy is defined as the amount of energy released when a mole of solute dissolves in a solvent.If the solvent is water, the energy released is called hydration energy.If the solvation energy of the compound is greater than its lattice energy, it dissolves in the solvent.

Dissolution is exothermic when the energy released by solvation is greater than energy required for breaking of solute and solvent attractions.Whereas, dissolution is endothermic when the energy released by solvation is less than energy required for breaking of solute and solvent attractions.For example: Dissolving ammonium nitrate in water is endothermic. The energy released by solvation of the ammonium ions and nitrate ions is less that the energy absorbed in breaking up the ammonium nitrate ionic lattice and the attractions between water molecules. Dissolving potassium hydroxide is exothermic, as more energy is released during solvation than is used in breaking up the solute and solvent.