K₂SO₄ - > 2K⁺ +SO₄²⁻
Dissociation of the ionic salts is defined as the separation of the cations and anions. This is facilitated in a polar solvent because in a polar solvent like water, the ions that get dissociated gets hydrated. This decrease their energy which is called the enthalpy of hydration. This stabilizes the ions and the whole solution.
In the case of potassium sulphate, the salt has potassium ions as the cations and sulphate ions as the anions. These ions get separated from each other which leads to formation of free potassium ions and sulphate ions.
The potassium ion being positively charged are stabilised by the oxygen part of the water and similarly, the sulphate being the anion, is supported by the hydrogen part of the water.
The reaction follows as K₂SO₄ - > 2K⁺ +SO₄²⁻
