17.2- BORN-HABER CYCLES Flashcards
1
Q
What is a Born-Haber cycle?
A
themochemical cycle that includes all the enthalpy changes involved in the formation of an ionic compound
2
Q
What sort of lattice enthalpies do larger ions lead to?
A
smaller lattice enthalpies
3
Q
why do larger ions lead to smaller lattice enthalpies?
A
as opposite charges do not approach each other closely when ions larger
4
Q
How does lattice enthalpy change with the size of charge?
A
lattice enthalpy increases with size of charge
5
Q
Why does lattice enthalpy increase with size of charge?
A
as ions with double the charge give out roughly twice as much energy when they come together
6
Q
What can Born-Haber cycles be used to investigate?
A
enthalpy of formation of theoretical compounds to see if they might be expected to exist
