Question

What change of energy occurs between the steam generator and the turbine?

Thermal energy is converted into mechanical energy.
Mechanical energy is converted into electrical energy.

Answer 1

Thermal energy is converted into mechanical energy between the steam generator and the turbine. The hot, high‑pressure steam expands and does work on the turbine blades, turning the turbine shaft. The mechanical energy of that rotating shaft is then converted into electrical energy in the generator.