Now the lattice energy of an ionic solid has a direct impact on its physical properties. Here we can say recall and increase in the lattice energy causes an increase in the strength of an ionic bond. And we can say here as we increase the lattice energy our ionic bond gets stronger, so the ions are held more tightly together.
That would result in a higher boiling point, higher melting point, but then a lower solubility. Solubility is how easily things break up and separate. But if you have a lot of lattice energy, you're held more together tightly. Your ionic bond is stronger.
So just remember the direct relationship between lattice energy, ionic strength, boiling point and melting point. But the inverse relationship, lattice energy has two solubility.