So in liquid solutions solve particles or ions disrupt the noncovalent solvent solvent tractions, thereby creating changes in various properties of the pure solvent. For example, if a solvent is added to a pure substance, the boiling point is higher and the melting point is lower than that of the pure substance. How much these properties change depend on the concentration of the solute use. Colligative properties are those properties that depend solely on the concentration of the solid use. They depend on the number or amount of solid particles used. They don't depend on the nature or type of particle use.