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More air is added until the pressure and temperature rise

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Reference no: EM13601988

A rigid tank contains 20 lbm of air at 20 psia and 70°F. More air is added until the pressure and temperature rise to 35 psia and 90°F. Determine the mass of air added to the tank. Approximate answer: 10 lbm.

Reference no: EM13601988

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