Engineering
Chemistry
Fajans Rule and Its Application
Hydration and Lattice Energy
Question
Which one of the following alkaline earth metal sulphates has its hydration enthalpy greater than its lattice enthalpy?
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Solution
(D) Solubility order of sulphates in water BeSO4 > CaSO4 > SrSO4 > BaSO4
BeSO4 has greater hydration enthalpy than its lattice enthalpy
Because Be2+ ion has maximum charge density.