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11. A steam engine isentropically expands 5 kg/sec of steam from 0.68 MPa, 220°C. the exhaust is dry and saturated. Determine (a) the work of a nonflow process (b) the final temperature, and (c) the work of a steady flow process.
Ans. (a) 641.05 kJ/sec; (b) 131.9°C (c) 838.38 kJ.
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