Why reaction turbine have moreefficeancy than impulse turbine?

Reaction turbines are generally more efficient than impulse turbines because they convert both the kinetic and pressure energy of the fluid into mechanical energy. In a reaction turbine, the water flows through the blades, creating lift and allowing for continuous energy transfer as the fluid expands and loses pressure. In contrast, impulse turbines rely solely on the momentum of the water jets, leading to energy losses during the conversion process. Additionally, reaction turbines can operate effectively across a wider range of flow conditions, optimizing their performance.