Sodium chloride, NaCl, dissolves in water because A)there are attractive forces between ions and water molecules. B)there are no attractive forces between ions and water molecules. C)the entropy of the solution is greater than the entropy of pure NaCl and pure H₂O. D)the entropy of the solution is less than the entropy of pure NaCl and pure H₂O. E)Both "there are attractive forces between ions and water molecules" and "the entropy of the solution is greater than the entropy of pure NaCl and pure H₂O" are correct.

Question

Quizplus · Accepted Answer

Both attractive forces between ions and water molecules and an increase in the entropy of the system contribute to the dissolution of NaCl in water. The attractive forces allow water molecules to surround and solvate the ions, while the increase in entropy results from the ions becoming more dispersed in the solution than they were in the solid.

Sodium Chloride, NaCl, Dissolves in Water Because