Enthalpy of Formation is the enthalpy change when one mole of a substance is formed from its constituent elements where all reactants and products are in standard states and under standard conditions
Enthalpy of combustion is the enthalpy change when one mole of a substance undergoes complete combustion with sufficient oxygen, where all reactants and products are in their standard states under standard conditions
Ionisation enthalpy is the enthalpy change to remove one electron from a species to form a positive ion and a electron in the gaseous state
Electron affinity is the enthalpy change when a electron is added to a atom in its gaseous state to form anegative ion.
Bond dissociation enthalpy is the enthalpy change when a covalent bond is broken into two freeradicals in the gas state
Enthalpy of atomisation is the enthalpy change when one mole of gaseous atoms is formed from the element in its standard state
Enthalpy change is the change of heat energy under a constant pressure
Lattice enthalpy of dissociation is the enthalpy change when one mole of solid ionic lattice is separated into gaseous ions
Lattice enthalpy of formation is the enthalpy change when one mole of a solid ionic lattice is formed from its gaseous ions
Enthalpy of Solution is the Enthalpy change when one mole of a substance is dissolved in so much water the dissolved ions do not interact
Enthalpy of Hydration is the enthalpy change when one mole of gaseous ions forms aqueous ions