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3. Exhalation of air from the lungs requires work because air must be pushed out from the lungs against atmospheric pressure. Calculate the expansion/compression work

3. Exhalation of air from the lungs requires work because air must be pushed out from the lungs against atmospheric pressure. Calculate the expansion/compression work (W) done when exhaling 0.5 L of air (V = 5.0 x 10-4 m3) against an atmospheric pressure (Pext) of 101 kPa. Convert your final answer to Joules

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