3.1.8.1 Born–Haber cycles (A-level only)
What is hess’ law? Energy enthalpy change is independent from reaction pathway as
long as same starting conditions
What are the standard conditions?
What signs do enthalpy reactions have
Endo and exothermic reactions?
What is enthalpy of lattice formation?
What is the enthalpy lattice Opposite lattice formation
dissociation?
What is monoatomic? 1 atom only
Can enthalpy lattice dissociation be
measured directly?
What is the standard enthalpy of
formation?
What is atomisation energy
What is ionisation energy (metals)
What is electron affinity
(non-metals)
,what happens to the energy change
when ionic compound formed?
What is the first ionisation energy?
Label the steps in graph above?
What are 2 positive enthalpy changes?
(2)
Name 2 negative enthalpy changes?
What happens to the lattice enthalpies
as decrease ionic radius?
What happens to the lattice enthalpies
as charge increases
, What’s difference between second
and first ionisation energy
Requires more energy to remove an electron from a cation than
from a gaseous atom
- Removal of an electron means they are closer to the
nucleus and so stronger forces of attraction
What is the difference between 1st and
2nd electron affinity of oxygen
What is hess’ law? Energy enthalpy change is independent from reaction pathway as
long as same starting conditions
What are the standard conditions?
What signs do enthalpy reactions have
Endo and exothermic reactions?
What is enthalpy of lattice formation?
What is the enthalpy lattice Opposite lattice formation
dissociation?
What is monoatomic? 1 atom only
Can enthalpy lattice dissociation be
measured directly?
What is the standard enthalpy of
formation?
What is atomisation energy
What is ionisation energy (metals)
What is electron affinity
(non-metals)
,what happens to the energy change
when ionic compound formed?
What is the first ionisation energy?
Label the steps in graph above?
What are 2 positive enthalpy changes?
(2)
Name 2 negative enthalpy changes?
What happens to the lattice enthalpies
as decrease ionic radius?
What happens to the lattice enthalpies
as charge increases
, What’s difference between second
and first ionisation energy
Requires more energy to remove an electron from a cation than
from a gaseous atom
- Removal of an electron means they are closer to the
nucleus and so stronger forces of attraction
What is the difference between 1st and
2nd electron affinity of oxygen
