Question 55General Subjects - 1st Asst/Chief

The correct answer is B) The feed water gains heat in section "23", while the vapor gives up heat in section "24". This is correct because in a typical steam distillation system, the feed water (untreated water) enters the system and passes through a heat exchanger (section "23") where it gains heat from the outgoing distilled vapor. Meanwhile, the distilled vapor gives up its heat in this heat exchanger (section "24") before being condensed and collected as the final distilled product. The other options are incorrect because they do not accurately describe the heat transfer processes occurring in the system. For example, option A is incorrect as the jacket water does not primarily lose heat at the cooler, and option C is incorrect as the jacket water absorbs heat in the distiller section, not the evaporator section.