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3.3lbm of air is contained in a piston cylinder device at 19.4psia and 76.6oF. The air...

3.3lbm of air is contained in a piston cylinder device at 19.4psia and 76.6oF. The air is compressed until the pressure reaches 81.1psia. During the process, heat is transferred from the air such that the temperature remains constant. Calculate the boundary work, in BTUs.   Also, sketch this process on a P-v diagram.

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