53.4 lbm of air in a rigid container at 22 psia and 400 R absorbs 3.04127 kW*hr of energy from an electrical resistance heater. For this problem, account for variable specific heats, but do not interpolate. a) Assuming no heat transfer, determine: The final temperature: The final pressure: R psia b) if the final pressure were 51.700 psia, determine: The final temperature: The heat transferred: R Btu

53.4 lbm of air in a rigid container at 22 psia and 400 R absorbs 3.04127 kW*hr of energy from an electrical resistance heater. For this problem, account for variable specific heats, but do not interpolate. a) Assuming no heat transfer, determine: The final temperature: The final pressure: R psia b) if the final pressure were 51.700 psia, determine: The final temperature: The heat transferred: R 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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