A steam turbine operates at steady state with inlet conditions ofP1 = 5 bar, T = 320°C. Steam leaves the turbine at a pressure1 bar. There is no significant heat

transfer between the turbine and its surroundings, and kinetic and potential energy changes between inlet and exit are negligible. If the isentropic turbine efficiency is 75%, determine the work developed per unit mass of steam flowing through the turbine, in kJ/kg.of \frac{\dot{W}_{\mathrm{cv}}}{\dot{m}}=271.95 \mathrm{~kJ} / \mathrm{kg}