Answer:
It is more efficient and the return of the vapor to the solution below is also higher.
Step-by-step explanation:
Water cooled condenser acts as a heat exchanger which helps in the removal of the heat from the refrigerant vapor and then this heat is transferred to the liquid flowing inside the tube.
A reflux condenser finds its usage in order to prevent the boiling of the solvent.
In air cooled condenser, ambient air is used to transfer the heat from the refrigerant to the liquid inside the tube.
This results in higher temperature at the dry bulb and condensing temperature which lowers the efficiency of the air cooled condenser.
The advantage of the water cooled condenser over the air cooled condenser is that the efficiency of these is more and the heat transfer to the liquid below is also higher with a limitation of higher consumption of liquid.