For concentrating an aqueous solution of a material like anhydrous Na2SO4, whose solubility decreases with rise in temperature, the most suitable evaporator is a __________ evaporator.

Question

Quizplus · Accepted Answer

A vacuum evaporator is most suitable for concentrating solutions like anhydrous Na2SO4, whose solubility decreases with a rise in temperature, because it operates at reduced pressure, allowing the solvent (water) to evaporate at lower temperatures, which is beneficial for such solutes.

For Concentrating an Aqueous Solution of a Material Like Anhydrous