Steam enters a steady- flow turbine with a mass flow rate of 13 kg/s at 600c , 8 mpa and a negligible velocity. the steam expands in the turbine to a saturated vapor at 300kpa where 10 perecent of the steam is removed for some other use. the remainder of the steam continous to expand to the tubine exist where the pressure is 10 kpa and quality is 85 percent . if the turbine is adiabatic . determine the rate of work done by the steam during this process.