Question

What is hydration enthalpy?? And explain , ' small size of Li has high hydration enthalpy which accounts for high negative E value and high reducing power.'' How hydration enthalpy is related to reducing power???

Answer 1

The heat energy released when new bonds are made between the ions and water molecules is known as thehydration enthalpy of the ion. Thehydration enthalpy is the enthalpychange when 1 mole of gaseous ions dissolve in sufficient water to give an infinitely dilute solution.