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Physics, 03.02.2020 23:46 rosie20052019

50 pounds of a working substance undergoes a non-flow process. the internal energy at the start of the process is 89 btu/lbm and at the completion of the process is 150 btu/lbm. a total of 350 btu of work is done on the working substance. how much heat was added or removed from each pound of the working substance (btu/lbm)

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