Enter the numerical ion charges and the distance between ion centers into the calculator to determine the lattice energy.
Lattice Energy Formula
The following formula is used to calculate a lattice energy between ions.
LE = (K * Q1 * Q2) / R
- Where LE is the lattice energy
- K is the constant (2.31 * 10 ^ -19 (J*nm)
- Q1 is the numerical ion charge of ion 1
- Q2 is the numerical ion charge of ion 2
- R is the distance between ions (nm)
Lattice Energy Definition
A lattice energy is defined as the total energy released when two charge gas ions attract and form a solid.
Lattice Energy Example
How to calculate lattice energy?
- First, determine the charge of ion 1.
For this example we will say ion 1 has a charge of (-1).
- Next, determine the charge of ion 2.
For this example we will say ion 2 has a charge of (+2).
- Next, determine the distance between ions.
We find the ions for this example to be at a distance of 3 nm.
- Finally, calculate the lattice energy.
Using the formula and the values from steps 1-3 we find the lattice energy to be, 1.54e^-19.
Lattice energy is the total energy released when two oppositely charged gas ions attract to each other a form a solid.