Steam at 650C and 40 bar enters a well -designed and well-insulated turbine. The steam leaves the turbine at 5 bar. a) Find the work generated (per kg) by the turbine.

After some time, the insulation breaks down resulting in a heat loss of 80 kJ for each kg of steam passing through the turbine. (It may be assumed that the heat is transferred out at 600C.) b) Find the work generated (per kg) by the turbine. (10 pts) c) Determine the efficiency of the turbine