Question

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 ?

Answer 1

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