In liquid- liquid solutions when solvent-solvent Intermolecular forces are stronger than solvent-solute Inter molecular forces. Process of making the solution is exothermic or endothermic?
Let’s see what exactly happening here. Stronger solvent-solvent intermolecular forces are breaking and weaker solvent-solute inter molecular forces are forming so breaking the bonds the solution needs energy so it absorbs from outside. It means process is ….?
Still confused .. Let’s see the process clearly.
When one liquid dissolves in another, the molecules are to be moved apart to accommodate solute molecules between the solvent molecules. Given that solvent-solvent IMF (intermolecular forces) are stronger than solvent-solute IMF. To accommodate solute particles between solvent particles IMF and between solvent-solvent should be broken and new IMF between solvent-solute should create. So some energy is needed for this. That’s why the process is endothermic.