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Thermodynamics

TermDefinition
enthalpy of formation the enthalpy change when one mole of a compound is formed from its constituent elements under standard conditions, all reactants and products in their standards states
ionisation enthalpy the standard enthalpy change when one mole of gaseous atoms is converted into one mole of gaseous ions each with a single positive charge
enthalpy of atomisation the enthalpy change when one mole of gaseous atoms is formed from the element in its standard state under standards conditions
bond dissociation enthalpy the enthalpy change when one mole of gaseous molecules each breaks a covalent bond to form two free radicals, averaged over a range of compounds
electron affinity the standard enthalpy change when a mole of gaseous atoms is converted to a mole of gaseous ions, each with a single negative charge
lattice enthalpy the standard enthalpy change when one mole of solid ionic compound is formed from its gaseous ions
enthalpy of hydration the standard enthalpy change when water molecules surround one mole of gaseous ions
enthalpy of solution the standard enthalpy change when one mole of solute dissolves completely in sufficient solvent to form a solution in which the molecules or ions are far enough apart not to interact with each other
Hess's Law the overall enthalpy change for a reaction is independent of the route taken from reactants to products
Created by: GraceAlston