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In a steam power plant, a 7.5m connects the boiler by turbine. 0.5kg/s of steam leaves the boiler at 723K with 3021kJ/Kg of internal energy,

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In a steam power plant, a 7.5m connects the boiler by turbine. 0.5kg/s of steam leaves the boiler at 723K with 3021kJ/Kg of internal energy, then it enters the turbine at 623K and 3500kPa through the pipe. Do you think this pipe is isolated? Show your work please

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