Which of the following metal sulphate has hydration energy higher than the lattice enthalpy?
SrSO4
MgSO4
CaSO4
BaSO4
As we learn
Lattice energy -
Amount of energy required to separate ions from one mole of the solid salt by infinite distance
- wherein
It is directly proportional to charge and inversely proportional to size
The hydration enthalpy of Mg2+ is more than the lattice energy.