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Consider the operation of an actual turbine in a gas turbine engine. The mass flow rate is 50 lbm/s. The turbine inlet temperature is 2040 deg F. The pressure ratio in the compressor is 18.15. The turbine efficiency is 0.91. Assume variable specific heats. The turbine work output is nearly

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310 B/lbm

340 B/lbm

355 B/lbm

325 B/lbm

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