Water vapor at 100 lbf/in, 500F and a velocity of 100 ft/s enters a nozzle operating...

 

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Water vapor at 100 lbf/in², 500°F and a velocity of 100 ft/s enters a nozzle operating at steady state and expands adiabatically to the exit, where the pressure is 40 lbf/in². If the isentropic nozzle efficiency is 95%, determine for the nozzle: (a) the velocity of the steam at the exit, in ft/s (b) the amount of entropy produced, in Btu/R per lb of steam flowing. Water vapor at 100 lbf/in², 500°F and a velocity of 100 ft/s enters a nozzle operating at steady state and expands adiabatically to the exit, where the pressure is 40 lbf/in². If the isentropic nozzle efficiency is 95%, determine for the nozzle: (a) the velocity of the steam at the exit, in ft/s (b) the amount of entropy produced, in Btu/R per lb of steam flowing.