During a steady flow process, the pressure of the working substance drops from 100 to 20 psia, the velocity increases from 200 to 1200 fps, the internal energy decreases 25 Btu/lb., and the volume increases from 1 to 6 cu.ft/lb. If the heat transferred is zero, what is the work of 1 lb. of the substance in Btu?

During a steady flow process, the pressure of the working substance drops from 100 to 20 psia, the velocity increases from 200 to 1200 fps, the internal energy decreases 25 Btu/lb., and the volume increases from 1 to 6 cu.ft/lb. If the heat transferred is zero, what is the work of 1 lb. of the substance in Btu?

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter2: Matter And Energy

Section: Chapter Questions

Problem 27RQ: How many Btu/h would be produced in a 12-kW electricheater?

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