Р 8-58 Combustion gases enter a gas turbine at 900°C, 800 kPa, and 100 m/s and leave at 650°C, 400 kPa, and 220 m/s. Tak

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Р 8-58 Combustion gases enter a gas turbine at 900°C, 800 kPa, and 100 m/s and leave at 650°C, 400 kPa, and 220 m/s. Taking cp 1.15 kJ/kg °C and k 1.3 for the combustion gases, determine (a) the exergy of the com- bustion gases at the turbine inlet and (b) the work output of the turbine under reversible conditions. Assume the sur- roundings to be at 25°C and 100 kPa. Can this turbine be ear adiabatic? = =