Born-Haber Cycles

Definitions

• Enthalpy of formation: the enthalpy change when one mole of a compound is formed from its constituent elements under standard conditions, all reactants and products in their standard states
• Enthalpy of combustion: the enthalpy change when one mole of substance is completely burnt in oxygen
• Enthalpy of atomisation: the enthalpy change that accompanies the formation of one mole of gaseous atoms from the element in its standard state under standard conditions
• First ionisation energy: the enthalpy change when one mole of gaseous atoms is converted into one mole of gaseous ions each with a single positive charge
• Second ionisation energy: the enthalpy change when one mole of gaseous ions each with a single positive charge is converted into one mole of gaseous ions each with a double positive charge
• First electron affinity: the enthalpy change when one mole of gaseous atoms is converted into one mole of gaseous ions…