Why For a water-cooled condenser the condenser is arranged so that water enters the condenser at the lowest point and leaves at the highest point?

Water enters the condenser at the lowest point to ensure efficient cooling by maximizing contact between water and hot refrigerant vapors. Having water exit at the highest point allows for air trapped in the system to be released easily, preventing air pockets that could hinder heat transfer efficiency. This setup also helps prevent water hammering by allowing air to escape as water flows out.