Enthalpy definitions

Question	Answer
One mole of gaseous atoms is converted from the element in its standard state under standard conditions	Enthalpy of atomisation
loss of one mole of electrons from gaseous atoms to form one mole of gaseous ions each with a single positive charge	First Ionisation energy
One mole of ionic compound dissociates into its gaseous ions	Lattice Dissociation
One mole of ionic compound is formed from its constituent elements under standard conditions	Enthalpy of formation
One mole of gaseous ions is converted into one mole of aqueous ions	Enthalpy of Hydration
One mole of substance is completely burnt in oxygen	Enthalpy of combustion
One mole of ionic compound is formed from its gaseous ions	Lattice Formation
one mole of ionic molecule each break a covalent bond forming two free radicals, averaged over a range of compounds.	Mean Bond Enthalpy
One mole of electrons are added to one mole of gaseous atoms forming one mole of gaseous ions each with a single negative charge	First Electron Affinity
One mole of electrons is added to one mole of negatively charged gaseous ions each with a single negative charge forming a mole of gaseous ions each with a two negative charge	Second Electron Affinity
One mole of electrons is lost from one mole of gaseous ions each with a single positive charge to form one mole of gaseous ions each with a two positive charge	Second Ionisation Energy
One mole of ionic compound is completely dissolved in water to form its aqueous ions	Enthalpy Of Solution

Resource summary

	Created by Matthew Philbin over 7 years ago