What occurs in the space labeled "G" of the device shown in the illustration? MO-0110

Correct Answer: Option B — The feed water enters the device and vaporizes under vacuum conditions.

Section G serves as the flash chamber where preheated seawater is introduced into a vacuum environment. The sudden pressure drop causes the water to flash into vapor, separating the freshwater from the brine, which is a fundamental operational principle of flash-type distilling plants used aboard modern vessels.