40.4492 Cc7 is velocity coming off the stator and entering stage 4. 121.292 Cc4 is velocity coming out of rotor. 32.2243 stage 4 is done. 3.39725 Stage 6 done. Compressor is done.
Rotor blades have constant length in radial direction.
Omega for the turbine is the same as omega for the compressor, because the turbine axel is connected to the compressor axel. The total enthalpy drop, over the 2 stages in the turbine, is equal to the enthalpy drop in the compressor because the work in each is equal. 339.014 The Area over the rotor doesn't change. There is a shock.