Question

What is evaporation under reduced pressure called?

• A. Multiple effect evaporation
• B. Mechanical recompression evaporation
• C. Vacuum evaporation
• D. Plate evaporation

Answer 1

The correct option is C Vacuum evaporation

Evaporation under reduced pressure is referred to as vacuum evaporation. Vacuum evaporation is the process of causing the pressure in a liquid-filled container to be reduced below the vapour pressure of the liquid, causing the liquid to evaporate at a lower temperature than normal.