basic

Born-Haber Cycle Lattice Enthalpy Calculator

U = ΔHf° − ΔHsub − IE − ½BE + EA — ionic lattice energy.

Uses Hess's law via the Born-Haber cycle to calculate the lattice enthalpy of an ionic compound from standard thermochemical data.

Dr. Helena Ortiz By Dr. Helena Ortiz
Published Last reviewed 1 min read

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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

U_lattice = ΔHf° − ΔHsub − IE − ½·BE + EA

In depth

Uses Hess's law via the Born-Haber cycle to calculate the lattice enthalpy of an ionic compound from standard thermochemical data.