In an absorption system, where does the refrigerant change from vapor to liquid?

The correct answer to where the refrigerant changes from vapor to liquid in an absorption system is the condenser. In an absorption refrigeration system, the condenser plays a critical role in the refrigeration cycle.

During the refrigeration process, the refrigerant vapor produced in the evaporator is absorbed by the absorbent and then processed through the generator, where it is vaporized again. This vapor then travels to the condenser, where it dissipates heat and condenses back into liquid form. The condenser cools the vapor, allowing it to release its heat to the surrounding environment, and thus facilitating the transition from a vapor state to a liquid state.

The other components like the evaporator, rectifier, and generator have different functions in the cycle. The evaporator is where the refrigerant absorbs heat and changes from liquid to vapor. The rectifier is used to separate unabsorbed vapor from the solution, and the generator is where the refrigerant is vaporized from the liquid absorbent before moving to the condenser. Hence, the condenser is the correct answer for the point in the cycle where the refrigerant changes from vapor to liquid.