Terms in this set (13)
The heat change at constant pressure
Enthalpy lattice of dissociation
the enthalpy change when one mole of an ionic compound is separated into its component gaseous ions.
Enthalpy lattice of formation
the enthalpy change when one mole of an ionic compund is formed from its constituent ions in the gaseous state.
Enthalpy of formation
the enthalpy change when one mole of a compound is formed from its elements when all reactants and products are in their standard states under standard conditions.
Enthalpy of atomisation of an element
the enthalpy change for the formation of one mole of gaseous atoms from the element in its standard state.
Bond dissociation enthalpy
the enthalpy change when one mole of a covalent bond is broken under standard conditions in the gaseous state.
First Ionisation enthalpy
the enthalpy change when one mole of electrons id removed from one mole of gaseous atoms to form one mole of gaseous ions with a single positive charge.
First electron affinity
the enthalpy when one mole of gaseous atoms forms one mole of negative ions with a single negative charge.
Perfect Ionic model
1. bonding in compound is 100% ionic
2. ions are regarded as point charges or perfect spheres
Enthalpy of solution
the enthalpy change when one mole of a solute dissolves in water.
reaction that may not occur at a particular temperature as the activation energy may be too high for it to proceed
enthalpy if hydration
the enthalpy change when one mole of gaseous ions is converted into one mole of aqueous ions