Assume you have an insulated tank containing 1.5 lbm of Nitrogen at 80 degrees F, and at a pressure of 50 psia. The tank is stirred by a paddle wheel that uses 0.02 hp for 30 minutes. The work that enters the tank from the paddle wheel is thus 25.45 BTU.
as you did not mention any parameter to find I have assumed to find the final temperature and pressure of the nitrogen gas and also nitrogen is chosen as an ideal gas at 80 F.
assumptions: insulated tank Q=0
change in volume is zero
no work transfer from the boundary.
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Assume you have an insulated tank containing 1.5 lbm of Nitrogen at 80 degrees F, and...
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