67.8 Ibm of air in a rigid container at 29 psia and 480 R absorbs 3.90172 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: psia b) if the final pressure were 59.208 psia, determine: The final temperature:

Elements Of Electromagnetics
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ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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67.8 Ibm of air in a rigid container at 29 psia and 480 R absorbs 3.90172 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:
psia
b) if the final pressure were 59.208 psia, determine:
The final temperature:
The heat transferred:
Btu
Transcribed Image Text:67.8 Ibm of air in a rigid container at 29 psia and 480 R absorbs 3.90172 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: psia b) if the final pressure were 59.208 psia, determine: The final temperature: The heat transferred: Btu
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