The tetraethylammonium salt (C₂H₅)₄NBr has a standard enthalpy of solution of +20 kJ·mol⁻¹ at 298 K, whereas KBr has a value of −5 kJ·mol⁻¹. Despite its endothermic dissolution, (C₂H₅)₄NBr is significantly more soluble in water than KBr at 25 °C. In no more than three sentences, provide an explanation that reconciles this observation by discussing the relative roles of enthalpy and entropy in determining the spontaneity of dissolution.