Which set of interactions involved in successfully forming a solution must have positive enthalpy changes? View Available Hint(s) Which set of interactions involved in successfully forming a solution must have positive enthalpy changes? only the interaction of solvent molecules as they are attracted to solute particles separating solvent particles in the pure solvent and the interaction of solvent molecules as they are attracted to solute particles separating solute particles in the pure solute and the interaction of solvent molecules as they are attracted to solute particles separating solute particles in the pure solute and separating solvent particles in pure solvent