Question:
Will there be any change in the size of common salt crystals if the rate of evaporation is increased or decreased? Explain. [Pg. No. 79]
Answer:
Verified
Yes, the size of common salt crystals changes with the rate of evaporation. During slow evaporation, salt particles get more time to arrange themselves in a regular pattern, so larger and well-formed crystals are produced. During fast evaporation, crystals form quickly and do not get enough time to grow properly, so smaller crystals are formed. Thus, slow evaporation generally gives bigger crystals, while rapid evaporation gives smaller crystals.
