NaCl crystals require energy ( called lattice energy ) to break into ions. Then why NaCl is soluble in water ?

NaCl crystals require energy ( called lattice energy ) to break into i

1.	NaCl crystals require energy ( called lattice energy ) to break into ions. Then why NaCl is soluble in water ?
Answer» Solution :Dissolution of NaCl is a two step PROCESS.The 1st step involvingdissociation of NaCl into ionsrequires, called lattice energy but the 2nd step involves hydration of `NA^(+)` and`Cl^(-)` IONS in which energy is released called hydration energy. THUS, overall process is accompanied by release of energy. Hence NaCl dissolves in WATER.