Chapter 22- Enthalpy and entropy Flashcards
Define lattice enthalpy
Enthalpy change that accompanies the formation of one mole of an ionic compound from its gaseous ions under standard conditions.
Define standard enthalpy change of atomisation
Enthalpy change that takes place for the formation of one mole of gaseous atoms from the element in its standard state under standard conditions.
Define first electron affinity
Enthalpy change that takes place when one electron is added to each atom in one mole of gaseous atoms to form one mole of gaseous 1- ions.
Define standard enthalpy change of a solution
Enthalpy change that takes place when one mole of a solute dissolves in a solvent.
Define enthalpy change of hydration
Enthalpy change that accompanies the dissolving of gaseous ions in water to form one mole of aqueous ions.
Define standard entropy
The entropy of one mole of a substance under standard conditions.