Comparing Lattice Enthalpies (AQA A-Level Chemistry): Flashcards
📚Flashcards
Practise the cards
10 cards from this deck
ShowHide
Practise the cards
10 cards from this deck
Lattice enthalpy represents
Lattice enthalpy represents
Strength of ionic bonds in an ionic compound
Enthalpy of lattice formation definition
Enthalpy of lattice formation definition
Enthalpy change when 1 mole ionic compound forms from gaseous ions
Enthalpy of lattice dissociation definition
Enthalpy of lattice dissociation definition
Enthalpy change to separate 1 mole ionic compound into gaseous ions
High lattice enthalpy indicates
High lattice enthalpy indicates
Strong ionic bonding with small, highly charged ions
Effect of smaller ionic radius on lattice enthalpy
Effect of smaller ionic radius on lattice enthalpy
Increases it - closer packing increases attraction
Effect of higher ionic charge on lattice enthalpy
Effect of higher ionic charge on lattice enthalpy
Increases it - stronger electrostatic attraction
Perfect ionic model assumption about bonding
Perfect ionic model assumption about bonding
Entirely ionic bonding; perfect spherical ions
Theoretical lattice enthalpy is calculated from
Theoretical lattice enthalpy is calculated from
Perfect ionic model
Experimental lattice enthalpy is obtained from
Experimental lattice enthalpy is obtained from
Born-Haber cycle
Evidence for covalent character in ionic compound
Evidence for covalent character in ionic compound
Experimental lattice enthalpy > theoretical