Problem: During a normal breath, our lungs expand about 0.50 L against an external pressure of 1.0 atm. How much work is involved in this process (in J)?  Express your answer to two significant figures and include the appropriate units.

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W=-PV


W=-1 atm(0.50 L)=-0.50 L•atm

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Problem Details

During a normal breath, our lungs expand about 0.50 L against an external pressure of 1.0 atm. How much work is involved in this process (in J)?  Express your answer to two significant figures and include the appropriate units.

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