Chem Enthalpy

Enthalpy of formation

Enthalpy change when one mole of a substance is formed from its constituent elements with all substances in their standard states

Enthalpy of atomisation

Enthalpy change when one mole of gaseous atoms is produced from an element in its standard state

Hydration enthalpy

Enthalpy change when one mole of gaseous ions become hydrated, dissolve in water

Bond dissociation enthalpy

Enthalpy change wehn one mole of an ionic solid dissolved in an amount of water large enough so that the dissolved ions are well separated and do no interact with each other

Lattice enthalpy of dissociation

Enthalpy change when one mole of a solid ionic compound is broken up into its constituent ions in the gas phase

Enthalpy of vaporisation

Enthalpy change when one mole of a liquid is turned into a gas

Enthalpy of fusion

Enthalpy change wehn one mole of a solid is turned into a liquid