A 130 L rigid tank initially contains nitrogen at 400 kPa, 100 K. The tank is connected to a line which contains nitrogen at 10,000 kPa, 260 K. The valve is opened and nitrogen flows into the tank until half of the tank’s volume is filled with liquid nitrogen, at which point the valve is closed. During the filling process heat is transferred from the tank to keep the temperature constant at 100 K. Neglect KE and PE terms. Calculate the final pressure and quality, and the heat transferred in the process.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A 130 L rigid tank initially contains nitrogen at 400 kPa, 100 K. The
tank is connected to a line which contains nitrogen at 10,000 kPa, 260 K.
The valve is opened and nitrogen flows into the tank until half of the
tank’s volume is filled with liquid nitrogen, at which point the valve is
closed. During the filling process heat is transferred from the tank to
keep the temperature constant at 100 K. Neglect KE and PE terms.
Calculate the final pressure and quality, and the heat transferred in
the process.

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