How much work (in j) is required to expand the volume of a pump from 0.0 l to 2.3 l against an external pressure of 1.1 atm ?

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asked Mar 5, 2019 140k views

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Alex Kleiman · Answer 1 · 2019-03-09T07:53:32+0000

work is force times distance
pressure is force over area

hence pressure times volume will give us force times distance aka work

1.1 atm is 111.458 kPa

si units

111.458 kPa times 2.3 L equals 256.35 J

How much work (in j) is required to expand the volume of a pump from 0.0 l to 2.3 l against an external pressure of 1.1 atm ?

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