# 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.

###### FREE Expert Solution

$\mathbf{W}\mathbf{=}\mathbf{-}\mathbf{P}\mathbf{∆}\mathbf{V}$

-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.