lattice enthalpy

First electron affinity

The enthalpy change when 1 mole of gaseous atoms is converted into gaseous ions with a single negative charge

Second electron affinity

The enthalpy change when 1 mole of gaseous ions with a single negative charge is converted into gaseous ions with a double negative charge

Enthalpy of atomisation

The enthalpy change when one mole of gaseous atoms is formed from the element in its standard state

Bond dissociation enthalpy

The energy required to break one mole of a covalent bond under standard conditions

Standard lattice enthalpy

The enthalpy change when one mole of an ionic compound is converted to gaseous ions

Enthalpy of solution

The enthalpy change when one mole of a solute dissolves in water

Enthalpy of hydration

The enthalpy change when one mole of gaseous ions is converted to one mole of aqueous ions