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Energy

A2

QuestionAnswer
Enthalpy change that accompanies the formation of one more of an ionic compound from its gaseous ions under standard conditions. Lattice enthalpy
States that if a reaction can take place by more than one route and initial and final conditions are the same, the total enthalpy change is the same for each route. Hess' Law
Enthalpy change that takes place when one mole of a compound is formed from its constituent elements in their standard state under standard conditions. Standard enthalpy change for Formation
Enthalpy change that takes place when one mole of gaseous atoms forms from the element in it standard state. Enthalpy change of atomisation
Enthalpy change accompanying the removal of one electron from each atom in one mole of gaseous atoms to form 1+ ions. First Ionisation Energy
Enthalpy change accompanying the removal of one electron from each ion in one mole of gaseous 1+ ions to form one mole of gaseous 2+ ions. Second Ionisation energy
Enthalpy change accompanying the addition of one electron to each atom in one mole of gaseous atoms to form one mole of gaseous 1- ions. First electon affinity
Enthalpy change accompanying the addition of one electron to each ion in one mole of gaseous 1- ions to form one mole of gaseous 2- ions. Second electron affinity
Created by: jemmah