Chapter 12, Problem 12.134QP

Interpretation Introduction

Interpretation:

Heat of hydration of $K^{+}$ ion has to be calculated and compared with that of $N{a}^{+}$ .

Concept Introduction:

• The energy released when gaseous state ions of unlike charges that are infinitely farther apart combine to form a stable ionic solid is called Lattice energy.  Conversely, the energy required to break the electrostatic force of attraction between the ions of unlike charges in the ionic solid and revert them to gaseous state is also termed as Lattice energy of an ionic solid.
• Hydration energy refers to the quantity of energy released when one mole of ion gets hydrated at constant pressure.  Hydration energy of an ion depends upon its ionic size.