Lattice Energy Calculator
Calculate the lattice energy of ionic compounds using the Born-Haber cycle or Kapustinskii equation.
About Lattice Energy
Lattice energy is a measure of the energy contained in the crystal lattice of a compound, equal to the energy that would be released if ions were combined to make the compound. It’s an important concept in chemistry for understanding the stability of ionic compounds.
Born-Haber Cycle
The Born-Haber cycle is an approach to analyze reaction energies using Hess’s Law. It breaks down the formation of an ionic compound into individual steps with measurable energies.
Kapustinskii Equation
The Kapustinskii equation calculates lattice energy when experimental data is unavailable, using ionic radii and charges. It’s particularly useful for complex ionic compounds.
Frequently Asked Questions
Lattice energy is the energy released when ions (charged atoms) come together to form a solid ionic compound. It measures how strongly the ions attract each other in the crystal structure.
Lattice energy helps predict:
- Stability of ionic compounds
- Melting and boiling points
- Solubility in different solvents
- Overall thermodynamics of formation
The Born-Haber cycle is generally more accurate as it uses experimental thermodynamic data. The Kapustinskii equation provides estimates when experimental data isn’t available, but may have 5-10% error.