Thermodynamics 0.0 / 5 ? ChemistryEnthalpyA2/A-levelAQA Created by: willmiddlehamCreated on: 04-05-14 12:44 Enthalpy change The heat exchange with the surroundings at constant pressure. 1 of 10 Enthalpy of formation The enthalpy change when 1 mole of a compound is formed from its elements under standard conditions. 2 of 10 Enthalpy of Hydration The enthalpy when a gaseous ion is changed into and aqueous ion. 3 of 10 Enthalpy of Lattice Formation The enthalpy change when gaseous ions combine to form 1 mole of a solid lattice. 4 of 10 Enthalpy of Solution Enthalpy change when 1 mole of an ionic solid dissolves in a large volume of water. 5 of 10 Ionisation Enthalpy Enthalpy change when 1 mole of gaseous electrons are removed from 1 mole of gaseous atoms to form 1 mole of gaseous ions. 6 of 10 Electron Affinity Enthalpy change when an electron is added to a gaseous atom (or ion). 7 of 10 Enthalpy of Atomisation (element) Enthalpy change which accompanies the formation of 1 mole of gaseous atoms from the element in its standard state. 8 of 10 Enthalpy of Atomisation (compound) Enthalpy change which accompanies the splitting of 1 mole of a compound into gaseous atoms. 9 of 10 Bond dissociation enthalpy Enthalpy change which accompanies the breaking of a covalent bond in a gaseous molecule to form two gaseous free radicals. 10 of 10
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