Work & PV Diagrams Video Lessons

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# Problem: How much work must be done on a system to decrease its volume from 15.0 L to 6.0 L by exerting a constant pressure of 3.0 atm?

###### FREE Expert Solution

The work done to decrease the volume from V1 to V2 is given as:

$\overline{){\mathbf{W}}{\mathbf{=}}{\mathbf{-}}{\mathbf{P}}{\mathbf{\left(}}{{\mathbf{V}}}_{{\mathbf{2}}}{\mathbf{-}}{{\mathbf{V}}}_{{\mathbf{1}}}{\mathbf{\right)}}}$, where P is pressure, V1 is initial volume, and V2 is the final volume.

We also need to note that:

$\overline{){\mathbf{1}}{\mathbf{a}}{\mathbf{t}}{\mathbf{m}}{\mathbf{L}}{\mathbf{=}}{\mathbf{101}}{\mathbf{.}}{\mathbf{325}}{\mathbf{J}}}$

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###### Problem Details

How much work must be done on a system to decrease its volume from 15.0 L to 6.0 L by exerting a constant pressure of 3.0 atm?