Question

Q. What is the difference between hydration enthalpy and lattice enthalpy? Explain with an example. ​

Answer 1

Answer:

Lattice energy and hydration energy are two important properties of ionic solids on which their melting point, boiling point and solubility depend. Lattice energy increases as the charge on the ion increases and the size decreases. Hydration energy increases as the size of the ion decreases and charges on it increases.

Answer 2

Explanation:

The heat energy needed to break up 1 mole of the crystal lattice is the lattice dissociation enthalpy. The heat energy released when new bonds are made between the ions and water molecules is known as the hydration enthalpy of the ion. ... Hydration enthalpies are always negative.